n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 25 |
4 | 1847 |
5 | 162531 |
6 | 2501726 |
7 | 21243084 |
8 | 119138166 |
9 | 502726650 |
10 | 1724809105 |
11 | 5059647669 |
12 | 13132889249 |
13 | 30905051345 |
14 | 67124176002 |
15 | 136380034610 |
16 | 261909043488 |
17 | 479315827404 |
18 | 841394145399 |
19 | 1424246670499 |
20 | 2334919892115 |
[0,0,25,1847,162531,2501726,21243084,119138166, 502726650,1724809105,5059647669,13132889249, 30905051345,67124176002,136380034610,261909043488, 479315827404,841394145399,1424246670499, 2334919892115] |