n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 56 |
4 | 948 |
5 | 21804 |
6 | 634284 |
7 | 22348584 |
8 | 925322784 |
9 | 44039346264 |
10 | 2369167375656 |
11 | 142173632632272 |
12 | 9416315321258928 |
13 | 682290228636729504 |
14 | 53689645309437175968 |
15 | 4559660591348115191808 |
16 | 415683140400707316145920 |
17 | 40490500091575002629253120 |
[1,1,5,56,948,21804,634284,22348584,925322784, 44039346264,2369167375656,142173632632272, 9416315321258928,682290228636729504, 53689645309437175968,4559660591348115191808, 415683140400707316145920, 40490500091575002629253120] |