n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 17 |
4 | 61 |
5 | 220 |
6 | 883 |
7 | 3597 |
8 | 15232 |
9 | 65130 |
10 | 282294 |
11 | 1229729 |
12 | 5384065 |
13 | 23630332 |
14 | 103922707 |
15 | 457561989 |
16 | 2016346540 |
17 | 8890227762 |
18 | 39212714934 |
19 | 173001054449 |
20 | 763388725141 |
21 | 3368934926716 |
22 | 14868728620387 |
23 | 65626328874621 |
24 | 289666423135048 |
25 | 1278582804528090 |
[1,2,6,17,61,220,883,3597,15232,65130,282294, 1229729,5384065,23630332,103922707,457561989, 2016346540,8890227762,39212714934,173001054449, 763388725141,3368934926716,14868728620387, 65626328874621,289666423135048,1278582804528090] |