n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 6 |
4 | 31 |
5 | 108 |
6 | 366 |
7 | 926 |
8 | 2286 |
9 | 5733 |
10 | 12905 |
11 | 27316 |
12 | 44676 |
13 | 94545 |
14 | 147031 |
15 | 257637 |
16 | 435387 |
17 | 643320 |
18 | 1107715 |
19 | 1760092 |
20 | 2563547 |
21 | 3744446 |
22 | 5582657 |
23 | 8089160 |
24 | 11373419 |
25 | 15575157 |
26 | 21480927 |
27 | 28569028 |
28 | 40893371 |
29 | 53425354 |
30 | 69774260 |
31 | 93548428 |
32 | 119627554 |
[0,1,6,31,108,366,926,2286,5733,12905,27316,44676, 94545,147031,257637,435387,643320,1107715,1760092, 2563547,3744446,5582657,8089160,11373419,15575157, 21480927,28569028,40893371,53425354,69774260, 93548428,119627554] |