n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 22 |
4 | 91 |
5 | 364 |
6 | 1428 |
7 | 5537 |
8 | 21318 |
9 | 81719 |
10 | 312455 |
11 | 1193010 |
12 | 4552275 |
13 | 17368680 |
14 | 66284554 |
15 | 253086480 |
16 | 966955410 |
17 | 3697182450 |
18 | 14147884842 |
19 | 54185826156 |
20 | 207712333598 |
21 | 796937116661 |
22 | 3060338457400 |
23 | 11762344331920 |
[0,1,5,22,91,364,1428,5537,21318,81719,312455, 1193010,4552275,17368680,66284554,253086480, 966955410,3697182450,14147884842,54185826156, 207712333598,796937116661,3060338457400, 11762344331920] |