n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 14 |
4 | 43 |
5 | 127 |
6 | 468 |
7 | 1596 |
8 | 5253 |
9 | 17917 |
10 | 60918 |
11 | 205194 |
12 | 694287 |
13 | 2351611 |
14 | 7951336 |
15 | 26894840 |
16 | 91004105 |
17 | 307854073 |
18 | 1041410602 |
19 | 3523170438 |
20 | 11918842803 |
21 | 40320750711 |
22 | 136404504124 |
23 | 461454010164 |
24 | 1561085306061 |
25 | 5281113937653 |
[1,1,2,14,43,127,468,1596,5253,17917,60918,205194, 694287,2351611,7951336,26894840,91004105, 307854073,1041410602,3523170438,11918842803, 40320750711,136404504124,461454010164, 1561085306061,5281113937653] |