n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 16 |
6 | 55 |
7 | 224 |
8 | 935 |
9 | 4400 |
10 | 21262 |
11 | 111624 |
12 | 596805 |
13 | 3457354 |
14 | 20147882 |
15 | 125455512 |
16 | 792576243 |
17 | 5277532388 |
18 | 35519373064 |
19 | 252120178596 |
20 | 1800810613940 |
21 | 13492153025558 |
22 | 102095379031327 |
23 | 804122472505530 |
24 | 6395239610004277 |
[1,1,2,5,16,55,224,935,4400,21262,111624,596805, 3457354,20147882,125455512,792576243,5277532388, 35519373064,252120178596,1800810613940, 13492153025558,102095379031327,804122472505530, 6395239610004277] |