n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 22 |
4 | 92 |
5 | 426 |
6 | 2150 |
7 | 11708 |
8 | 68282 |
9 | 423948 |
10 | 2788230 |
11 | 19341952 |
12 | 141003552 |
13 | 1076787624 |
14 | 8589843716 |
15 | 71404154928 |
16 | 617151121998 |
17 | 5535236798058 |
18 | 51426766394244 |
19 | 494145546973656 |
20 | 4903432458931118 |
21 | 50181840470551778 |
22 | 529009041574922566 |
[1,2,6,22,92,426,2150,11708,68282,423948,2788230, 19341952,141003552,1076787624,8589843716, 71404154928,617151121998,5535236798058, 51426766394244,494145546973656,4903432458931118, 50181840470551778,529009041574922566] |