n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 17 |
3 | 54 |
4 | 165 |
5 | 482 |
6 | 1319 |
7 | 3390 |
8 | 8262 |
9 | 19250 |
10 | 43154 |
11 | 93601 |
12 | 197381 |
13 | 406200 |
14 | 817954 |
15 | 1614348 |
16 | 3126068 |
17 | 5943728 |
18 | 11103912 |
19 | 20396957 |
20 | 36869790 |
21 | 65637607 |
22 | 115178814 |
23 | 199377387 |
24 | 340708159 |
25 | 575150851 |
26 | 959691775 |
27 | 1583660542 |
[1,5,17,54,165,482,1319,3390,8262,19250,43154, 93601,197381,406200,817954,1614348,3126068, 5943728,11103912,20396957,36869790,65637607, 115178814,199377387,340708159,575150851,959691775, 1583660542] |