n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 11 |
4 | 30 |
5 | 85 |
6 | 244 |
7 | 715 |
8 | 2118 |
9 | 6317 |
10 | 18900 |
11 | 56635 |
12 | 169822 |
13 | 509365 |
14 | 1527972 |
15 | 4583771 |
16 | 13751142 |
17 | 41253229 |
18 | 123759460 |
19 | 371278123 |
20 | 1113834078 |
21 | 3341501909 |
22 | 10024505364 |
23 | 30073515691 |
24 | 90220546630 |
25 | 270661639405 |
26 | 811984917684 |
27 | 2435954752475 |
28 | 7307864256798 |
29 | 21923592769717 |
30 | 65770778308420 |
31 | 197312334924475 |
[0,1,4,11,30,85,244,715,2118,6317,18900,56635, 169822,509365,1527972,4583771,13751142,41253229, 123759460,371278123,1113834078,3341501909, 10024505364,30073515691,90220546630,270661639405, 811984917684,2435954752475,7307864256798, 21923592769717,65770778308420,197312334924475] |