n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 1 |
10 | 8 |
11 | 35 |
12 | 117 |
13 | 338 |
14 | 891 |
15 | 2208 |
16 | 5240 |
17 | 12051 |
18 | 27060 |
19 | 59630 |
20 | 129389 |
21 | 277146 |
22 | 586953 |
23 | 1230801 |
24 | 2557766 |
25 | 5272384 |
26 | 10786683 |
27 | 21916364 |
28 | 44242295 |
29 | 88774290 |
30 | 177117257 |
31 | 351481202 |
32 | 693942477 |
33 | 1363437316 |
34 | 2666412440 |
[0,0,0,0,0,0,0,0,0,1,8,35,117,338,891,2208,5240, 12051,27060,59630,129389,277146,586953,1230801, 2557766,5272384,10786683,21916364,44242295, 88774290,177117257,351481202,693942477,1363437316, 2666412440] |