A(01)=1
A(02)=211
A(03)=32211
A(04)=4332211
A(05)=544332211
A(06)=65544332211
A(07)=7665544332211
A(08)=877665544332211
A(09)=98877665544332211
A(10)=10998877665544332211
A(11)=111010998877665544332211
A(12)=1211111010998877665544332211
A(13)=13121211111010998877665544332211
A(14)=141313121211111010998877665544332211
A(15)=1514141313121211111010998877665544332211
LinearRecurrence[{1, 1, -1}, {1, 1, 2}, 75]
{1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12,
12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21,
21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30,
30, 31, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38}
这倒过来写我不会了,各位网友!可有什么诀窍?谢谢! |