n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 5 |
5 | 16 |
6 | 82 |
7 | 169 |
8 | 541 |
9 | 2272 |
10 | 43166 |
11 | 99859 |
12 | 479030 |
13 | 2089751 |
14 | 13714261 |
15 | 493866559 |
16 | 1397727901 |
17 | 7786145776 |
18 | 39662742502 |
19 | 252997758007 |
20 | 2026338881050 |
21 | 131040136520017 |
22 | 427809641611111 |
23 | 2813929521468817 |
[1,1,1,4,5,16,82,169,541,2272,43166,99859,479030, 2089751,13714261,493866559,1397727901,7786145776, 39662742502,252997758007,2026338881050, 131040136520017,427809641611111,2813929521468817] |