n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 14 |
6 | 33 |
7 | 57 |
8 | 236 |
9 | 6280 |
10 | 7170 |
11 | 172302 |
12 | 24568434 |
13 | 32871132 |
14 | 43231756 |
15 | 60680523 |
16 | 83128444 |
17 | 720494727 |
18 | 803406064 |
19 | 1804216488 |
20 | 6655647717 |
21 | 9106036988 |
22 | 14962799365 |
23 | 37839117297 |
24 | 121819278396 |
25 | 262108609568 |
[1,1,2,3,14,33,57,236,6280,7170,172302,24568434, 32871132,43231756,60680523,83128444,720494727, 803406064,1804216488,6655647717,9106036988, 14962799365,37839117297,121819278396,262108609568] |