n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 27 |
5 | 105 |
6 | 492 |
7 | 2584 |
8 | 14893 |
9 | 93625 |
10 | 637342 |
11 | 4663856 |
12 | 36455959 |
13 | 302825585 |
14 | 2661650680 |
15 | 24662914640 |
16 | 240141823417 |
17 | 2450053360913 |
18 | 26125165902810 |
19 | 290487741343352 |
20 | 3361177509359859 |
21 | 40396577112990745 |
22 | 503447944487902244 |
23 | 6496090993661295784 |
24 | 86660903426459105701 |
[1,1,2,8,27,105,492,2584,14893,93625,637342, 4663856,36455959,302825585,2661650680,24662914640, 240141823417,2450053360913,26125165902810, 290487741343352,3361177509359859, 40396577112990745,503447944487902244, 6496090993661295784,86660903426459105701] |