n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 7 |
5 | 50 |
6 | 371 |
7 | 3023 |
8 | 26962 |
9 | 263503 |
10 | 2806759 |
11 | 32439638 |
12 | 404794391 |
13 | 5429249279 |
14 | 77941628854 |
15 | 1193095348531 |
16 | 19406686847167 |
17 | 334372746780002 |
18 | 6085085617645595 |
19 | 116659595136911903 |
20 | 2350442395504338154 |
21 | 49658877772798776295 |
22 | 1097945956312067172727 |
[0,0,1,7,50,371,3023,26962,263503,2806759, 32439638,404794391,5429249279,77941628854, 1193095348531,19406686847167,334372746780002, 6085085617645595,116659595136911903, 2350442395504338154,49658877772798776295, 1097945956312067172727] |