n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 11 |
3 | 62 |
4 | 367 |
5 | 2232 |
6 | 13820 |
7 | 86662 |
8 | 548591 |
9 | 3498146 |
10 | 22436251 |
11 | 144583496 |
12 | 935394436 |
13 | 6071718512 |
14 | 39523955552 |
15 | 257913792342 |
16 | 1686627623151 |
17 | 11050540084902 |
18 | 72522925038257 |
19 | 476669316338542 |
20 | 3137209052543927 |
21 | 20672732229560032 |
22 | 136374124374593072 |
23 | 900541325129687272 |
[1,2,11,62,367,2232,13820,86662,548591,3498146, 22436251,144583496,935394436,6071718512, 39523955552,257913792342,1686627623151, 11050540084902,72522925038257,476669316338542, 3137209052543927,20672732229560032, 136374124374593072,900541325129687272] |