n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 19 |
5 | 61 |
6 | 221 |
7 | 815 |
8 | 3095 |
9 | 12109 |
10 | 48260 |
11 | 195368 |
12 | 803053 |
13 | 3337237 |
14 | 14015560 |
15 | 59384502 |
16 | 253544419 |
17 | 1090093997 |
18 | 4715233418 |
19 | 20507407116 |
20 | 89633056681 |
21 | 393499148239 |
22 | 1734526536805 |
23 | 7673967478285 |
24 | 34066109008637 |
25 | 151697174130059 |
26 | 677446012298428 |
27 | 3033350909365552 |
28 | 13615684209776521 |
[1,1,2,6,19,61,221,815,3095,12109,48260,195368, 803053,3337237,14015560,59384502,253544419, 1090093997,4715233418,20507407116,89633056681, 393499148239,1734526536805,7673967478285, 34066109008637,151697174130059,677446012298428, 3033350909365552,13615684209776521] |