n | a(n) |
---|---|
1 | 1 |
2 | 15 |
3 | 155 |
4 | 1410 |
5 | 12165 |
6 | 102548 |
7 | 856205 |
8 | 7128420 |
9 | 59386655 |
10 | 495973610 |
11 | 4156326090 |
12 | 34965061950 |
13 | 295326872685 |
14 | 2504471904060 |
15 | 21322339850120 |
16 | 182220932483936 |
17 | 1562911922345700 |
18 | 13451387178653575 |
19 | 116149864521206475 |
20 | 1006036370555080950 |
21 | 8739349976276626707 |
22 | 76128234963921173340 |
[1,15,155,1410,12165,102548,856205,7128420, 59386655,495973610,4156326090,34965061950, 295326872685,2504471904060,21322339850120, 182220932483936,1562911922345700, 13451387178653575,116149864521206475, 1006036370555080950,8739349976276626707, 76128234963921173340] |