n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 14 |
5 | 52 |
6 | 204 |
7 | 840 |
8 | 3586 |
9 | 15708 |
10 | 70196 |
11 | 318792 |
12 | 1467068 |
13 | 6826360 |
14 | 32062184 |
15 | 151805328 |
16 | 723785606 |
17 | 3472055348 |
18 | 16745865716 |
19 | 81154862712 |
20 | 394993248572 |
21 | 1929956966024 |
22 | 9463011127592 |
23 | 46547604953424 |
24 | 229631732978956 |
25 | 1135868927282840 |
26 | 5632406184568280 |
27 | 27992869133724208 |
28 | 139417039713595032 |
29 | 695719759056964304 |
30 | 3478120152935676720 |
31 | 17417832347321830432 |
[1,2,4,14,52,204,840,3586,15708,70196,318792, 1467068,6826360,32062184,151805328,723785606, 3472055348,16745865716,81154862712,394993248572, 1929956966024,9463011127592,46547604953424, 229631732978956,1135868927282840,5632406184568280, 27992869133724208,139417039713595032, 695719759056964304,3478120152935676720, 17417832347321830432] |