n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 24 |
4 | 115 |
5 | 551 |
6 | 2640 |
7 | 12649 |
8 | 60605 |
9 | 290376 |
10 | 1391275 |
11 | 6665999 |
12 | 31938720 |
13 | 153027601 |
14 | 733199285 |
15 | 3512968824 |
16 | 16831644835 |
17 | 80645255351 |
18 | 386394631920 |
19 | 1851327904249 |
20 | 8870244889325 |
21 | 42499896542376 |
22 | 203629237822555 |
23 | 975646292570399 |
24 | 4674602225029440 |
[0,1,5,24,115,551,2640,12649,60605,290376,1391275, 6665999,31938720,153027601,733199285,3512968824, 16831644835,80645255351,386394631920, 1851327904249,8870244889325,42499896542376, 203629237822555,975646292570399,4674602225029440] |