朋友，请看一下重要启示！

ysr

其中的def均为整数，就差g=630,499,994,554,840.49004056808252209不是整数了，边长为兔子数列连续三项各自的平方

ysr

不完美长方体是：a=85146110326225 b=222915410843904 c=583600122205489 d=238623428219846 e=624724245591580 f=589778740496762 g=630499994554840.49

实际是d=238,623,428,219,846.41122715802094575
e=624,724,245,591,579.55576466327118318
f=589,778,740,496,762.3742343540759803

不对了，都是近似值

ysr

'兔子数列程序
Private Function tzshulie(sa As String) As String
Dim a, B, c
a = Val(sa)
B = 0

Do While B <= a
b1 = Int((B + 1) / 2)
w = Val(((1 / 2 + Sqr(5) / 2) ^ B - (1 / 2 - Sqr(5) / 2) ^ B) / Sqr(5))
w = Int(w)
s1 = s1 & "/" & w
B = Val(B + 1)

Loop
tzshulie = s1
End Function

Private Sub Command1_Click()
Dim a, B, ak()
a1 = Trim(Text1)
s3 = tzshulie(Val(a1))
s5 = Split(s3, "/")
j1 = UBound(s5)
For k = 1 To j1
      n1 = n1 + 1
       ReDim Preserve ak(1 To n1)
      ak(n1) = s5(n1)
      s12 = s12 & "/" & Val(ak(n1)) ^ 2
    Next
    s12 = s12 & "/" & s13
    For i = 2 To 48
a = Val(ak(i)) ^ 2
B = Val(ak(i + 1)) ^ 2
c = Val(ak(i + 2)) ^ 2
d = a ^ 2 + B ^ 2
e = B ^ 2 + c ^ 2
f = c ^ 2 + a ^ 2
g = a ^ 2 + B ^ 2 + c ^ 2
If InStr(Sqr(d), ".") = 0 And InStr(Sqr(e), ".") = 0 And InStr(Sqr(f), ".") = 0 Then
s = s & "不完美长方体是：a=" & a & " b=" & B & " c=" & c & " d=" & Sqr(d) & " e=" & Sqr(e) & " f=" & Sqr(f) & " g=" & Sqr(g) & vbCrLf
s1 = s1 + 1
Else
s = s
End If

Next
If s1 > 0 Then
Text2 = s
Else
Text2 = "无解"
End If


End Sub

Private Sub Command2_Click()
Text1 = ""
Text2 = ""

End Sub

ysr

/平方数9227465^2的拆分解有:13组/9227465^2=388736^2+9219273^2
/9227465^2=634868^2+9205599^2
/9227465^2=1650660^2+9078625^2
/9227465^2=2271376^2+8943543^2
/9227465^2=2954583^2+8741656^2
/9227465^2=3187041^2+8659612^2
/9227465^2=3549025^2+8517660^2
/9227465^2=4126647^2+8253296^2
/9227465^2=4684713^2+7949816^2
/9227465^2=5015465^2+7745400^2
/9227465^2=5220575^2+7608660^2
/9227465^2=5536479^2+7381972^2
/9227465^2=6272504^2+6767703^2
这是个兔子数的平方：9227465^2=85,146,110,326,225，就是前面的a

ysr

前面的abc依次为/9227465^2/14930352^2/24157817^2,下面把bc再拆分看看。

ysr

/平方数14930352^2的拆分解有:33组/14930352^2=1^2+14930352^2
/14930352^2=426852^2+14924249^2
/14930352^2=678303^2+14914936^2
/14930352^2=1027239^2+14894972^2
/14930352^2=1055204^2+14893017^2
/14930352^2=1104436^2+14889447^2
/14930352^2=1702873^2+14832924^2
/14930352^2=2670823^2+14689524^2
/14930352^2=3750128^2+14451711^2
/14930352^2=4106143^2+14354616^2
/14930352^2=4133088^2+14346881^2
/14930352^2=4328801^2+14289048^2
/14930352^2=4707231^2+14168888^2
/14930352^2=4735548^2+14159449^2
/14930352^2=4754049^2+14153248^2
/14930352^2=5110388^2+14028519^2
/14930352^2=5742444^2+13781863^2
/14930352^2=6134113^2+13612056^2
/14930352^2=6677056^2+13354113^2
/14930352^2=7026048^2+13173840^2
/14930352^2=7209177^2+13074524^2
/14930352^2=7537456^2+12888063^2
/14930352^2=7580024^2+12863073^2
/14930352^2=8091647^2+12547536^2
/14930352^2=8115192^2+12532321^2
/14930352^2=8470169^2+12295188^2
/14930352^2=8958212^2+11944281^2
/14930352^2=8997652^2+11914599^2
/14930352^2=9020007^2+11897684^2
/14930352^2=9296031^2+11683288^2
/14930352^2=9311292^2+11671129^2
/14930352^2=9491604^2+11524967^2
/14930352^2=9817217^2+11248896^2
这个厉害拆分组不少。

ysr

/平方数24157817^2的拆分解有:29组/24157817^2=1^2+24157817^2
/24157817^2=92737^2+24157639^2
/24157817^2=1662107^2+24100571^2
/24157817^2=1754611^2+24094013^2
/24157817^2=2395592^2+24038745^2
/24157817^2=2755308^2+24000175^2
/24157817^2=4230211^2+23784563^2
/24157817^2=4321483^2+23768149^2
/24157817^2=5625945^2+23493592^2
/24157817^2=5977135^2+23406708^2
/24157817^2=6067833^2+23383360^2
/24157817^2=8268783^2+22698620^2
/24157817^2=8695215^2+22538708^2
/24157817^2=9291469^2+22299523^2
/24157817^2=9377003^2+22263691^2
/24157817^2=10803703^2+21607409^2
/24157817^2=10803705^2+21607408^2
/24157817^2=10886569^2+21565777^2
/24157817^2=11664692^2+21155025^2
/24157817^2=12184751^2+20859817^2
/24157817^2=12264737^2+20812889^2
/24157817^2=13052719^2+20327977^2
/24157817^2=13130657^2+20277721^2
/24157817^2=13627792^2+19947015^2
/24157817^2=13705020^2+19894033^2
/24157817^2=14001400^2+19686567^2
/24157817^2=14494691^2+19326253^2
/24157817^2=14568773^2+19270469^2
/24157817^2=15884592^2+18201095^2
这个组数也不少吧。

ysr

不完美长方体是：a=32522920134769 b=222915410843904 c=583600122205489 d=225275433027659 e=624724245591580 f=584505639812273 g=625570238553642
又找到一组近似解

ysr

兔子数列前83项：
w=0
w=1
w=1
w=2
w=3
w=5
w=8
w=13
w=21
w=34
w=55
w=89
w=144
w=233
w=377
w=610
w=987
w=1597
w=2584
w=4181
w=6765
w=10946
w=17711
w=28657
w=46368
w=75025
w=121393
w=196418
w=317811
w=514229
w=832040
w=1346269
w=2178309
w=3524578
w=5702887
w=9227465
w=14930352
w=24157817
w=39088169
w=63245986
w=102334155
w=165580141
w=267914296
w=433494437
w=701408733
w=1134903170
w=1836311903
w=2971215073
w=4807526976
w=7778742049
w=12586269025
w=20365011074
w=32951280099
w=53316291173
w=86267571272
w=139583862445
w=225851433717
w=365435296162
w=591286729879
w=956722026041
w=1548008755920
w=2504730781961
w=4052739537881
w=6557470319842
w=10610209857723
w=17167680177565
w=27777890035288
w=44945570212853
w=72723460248141
w=117669030460994
w=190392490709135
w=308061521170130
w=498454011879265
w=806515533049395
w=1.30496954492866E+15
w=2.11148507797806E+15
w=3.41645462290672E+15
w=5.52793970088477E+15
w=8.94439432379149E+15
w=1.44723340246763E+16
w=2.34167283484677E+16
w=3.7889062373144E+16
w=6.13057907216118E+16
w=9.91948530947558E+16

ysr

python程序的结果：
请输入一个数字：72
0
1
1
2
3
5
8
13
21
34
55
89
144
233
377
610
987
1597
2584
4181
6765
10946
17711
28657
46368
75025
121393
196418
317811
514229
832040
1346269
2178309
3524578
5702887
9227465
14930352
24157817
39088169
63245986
102334155
165580141
267914296
433494437
701408733
1134903170
1836311903
2971215073
4807526976
7778742049
12586269025
20365011074
32951280099
53316291173
86267571272
139583862445
225851433717
365435296162
591286729879
956722026041
1548008755920
2504730781961
4052739537881
6557470319842
10610209857723
17167680177565
27777890035288
44945570212853
72723460248141
117669030460994
190392490709135
308061521170129
请输入一个数字：