n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 14 |
4 | 35 |
5 | 91 |
6 | 728 |
7 | 1976 |
8 | 5434 |
9 | 135850 |
10 | 380380 |
11 | 1071980 |
12 | 9111830 |
13 | 25933670 |
14 | 74096200 |
15 | 637227320 |
16 | 1832028545 |
17 | 5280552865 |
18 | 137294374490 |
19 | 397431084050 |
20 | 1152550143745 |
21 | 10043651252635 |
22 | 29217894553120 |
23 | 85112997176480 |
[1,1,2,14,35,91,728,1976,5434,135850,380380, 1071980,9111830,25933670,74096200,637227320, 1832028545,5280552865,137294374490,397431084050, 1152550143745,10043651252635,29217894553120, 85112997176480] |