n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 2 |
4 | 1 |
5 | 1 |
6 | 9 |
7 | 1 |
8 | 81 |
9 | 476 |
10 | 225 |
11 | 324 |
12 | 4604 |
13 | 74879 |
14 | 176400 |
15 | 215296 |
16 | 3444736 |
17 | 11551671 |
18 | 45680444 |
19 | 255004929 |
20 | 1158920361 |
21 | 2657058876 |
22 | 24923993276 |
23 | 130518272975 |
24 | 97216010329 |
25 | 2430400258225 |
26 | 1553580508516 |
27 | 4666092737476 |
28 | 538347188396016 |
29 | 2137864362693921 |
[0,0,1,2,1,1,9,1,81,476,225,324,4604,74879,176400, 215296,3444736,11551671,45680444,255004929, 1158920361,2657058876,24923993276,130518272975, 97216010329,2430400258225,1553580508516, 4666092737476,538347188396016,2137864362693921] |