n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 8 |
5 | 15 |
6 | 40 |
7 | 130 |
8 | 326 |
9 | 854 |
10 | 2812 |
11 | 8328 |
12 | 22849 |
13 | 72679 |
14 | 233635 |
15 | 686180 |
16 | 2131348 |
17 | 7032223 |
18 | 21948203 |
19 | 68247127 |
20 | 224907904 |
21 | 731136007 |
22 | 2315461477 |
23 | 7582271275 |
24 | 25158427804 |
25 | 81559484413 |
26 | 266864101260 |
27 | 891674092876 |
28 | 2948579481971 |
29 | 9706598328841 |
30 | 32479860131793 |
31 | 108816989575044 |
32 | 361744537905184 |
[1,1,1,3,8,15,40,130,326,854,2812,8328,22849, 72679,233635,686180,2131348,7032223,21948203, 68247127,224907904,731136007,2315461477, 7582271275,25158427804,81559484413,266864101260, 891674092876,2948579481971,9706598328841, 32479860131793,108816989575044,361744537905184] |