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98是对的,99就对不上了。假如只需要40个具体值,可以减少工作量吗?
(9),K(1)+K(2)+K(3)+K(4)+K(5)+K(6)+K(7)+K(8)+K(9)=N的解组数,限制条件未知数取数不能取 9 的倍数,
具体值需要40个,其中a(1)=a(2)=a(3)=a(4)=a(5)=a(6)=a(7)=a(8)=0,a(9)=1,a(10)=9,
0, 0, 0, 0, 0, 0, 0, 0, 1, 9, 45, 165, 495, 1287, 3003, 6435, 12861, 24238, 43434, 74502, 123000, 196362,
304326, 459426, 677592, 978858, 1388179, 1936359, 2661093, 3608127, 4832541, 6400161, 8389023,
10891053, 14013963, 17883364, 22645098, 28467792, 35545638, 44101404, 54389808, 66700758,
81362952, 98747838, 119273935, 143411517, 171687663, 204691677, 243080757, 287586801,
339022467, 398287773, 466377237, 544387558, 633525840, 735118362, 850619982, 981623214,
1129870638, 1297265064, 1485880452, 1697973588, 1935996517, 2202609735, 2500696107,
2833376199, 3204020763, 3616271955, 4074059127, 4581615627, 5143496607, 5764597840,
6450175557, 7205867001, 8037714861, 8952181425, 9956183337, 11057114781, 12262871961,
13581878877, 15023114397, 16596140706, 18311131674, 20178912006, 22210967988, 24419502756,
26817468876, 29418602544, 32237459406, 35289451990, 38590889139, 42159012291, 46012059489,
50169261879, 54650929707, 59478496539, 64674565461, 70262957259, 76268760535, 82718385156,
89639604054, 97061660124, 105015228318, 113532547194, 122647477260, 132395561694,......
94 50169261879
95 54650929707
96 59478496539
97 64674565461
98 70262957259
99 76268760526
100 82718385075
101 89639603649
102 97061658639 |
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