n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 15 |
4 | 28 |
5 | 165 |
6 | 2466 |
7 | 6391 |
8 | 32712 |
9 | 254169 |
10 | 8000110 |
11 | 23222331 |
12 | 145821996 |
13 | 885826981 |
14 | 10355593990 |
15 | 580020616155 |
16 | 1956699202576 |
17 | 13457098894353 |
18 | 88066577768742 |
19 | 770513432372803 |
20 | 11463088329530100 |
21 | 1112643152111464701 |
22 | 4221830986978013662 |
23 | 32868804739198928259 |
[1,1,2,15,28,165,2466,6391,32712,254169,8000110, 23222331,145821996,885826981,10355593990, 580020616155,1956699202576,13457098894353, 88066577768742,770513432372803,11463088329530100, 1112643152111464701,4221830986978013662, 32868804739198928259] |