n | a(n) |
---|---|
1 | 7 |
2 | 28 |
3 | 158 |
4 | 1087 |
5 | 8420 |
6 | 69034 |
7 | 586400 |
8 | 5097725 |
9 | 45088364 |
10 | 404211372 |
11 | 3663020374 |
12 | 33489909119 |
13 | 308457775318 |
14 | 2858876653517 |
15 | 26639629964435 |
16 | 249393774431034 |
17 | 2344318827962046 |
18 | 22116397163892861 |
19 | 209317713089716899 |
20 | 1986761935587919881 |
21 | 18906449884370307192 |
[7,28,158,1087,8420,69034,586400,5097725,45088364, 404211372,3663020374,33489909119,308457775318, 2858876653517,26639629964435,249393774431034, 2344318827962046,22116397163892861, 209317713089716899,1986761935587919881, 18906449884370307192] |