n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 6 |
4 | 11 |
5 | 36 |
6 | 85 |
7 | 235 |
8 | 600 |
9 | 1590 |
10 | 4140 |
11 | 10866 |
12 | 28416 |
13 | 74431 |
14 | 194821 |
15 | 510096 |
16 | 1335395 |
17 | 3496170 |
18 | 9153025 |
19 | 23963005 |
20 | 62735880 |
21 | 164244756 |
22 | 429998256 |
23 | 1125750156 |
24 | 2947252056 |
25 | 7716006181 |
26 | 20200766305 |
27 | 52886292930 |
28 | 138458112275 |
29 | 362488044120 |
[1,1,6,11,36,85,235,600,1590,4140,10866,28416, 74431,194821,510096,1335395,3496170,9153025, 23963005,62735880,164244756,429998256,1125750156, 2947252056,7716006181,20200766305,52886292930, 138458112275,362488044120] |