n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 1 |
9 | 7 |
10 | 34 |
11 | 129 |
12 | 432 |
13 | 1320 |
14 | 3807 |
15 | 10505 |
16 | 28094 |
17 | 73290 |
18 | 187579 |
19 | 472612 |
20 | 1175580 |
21 | 2892389 |
22 | 7050272 |
23 | 17045235 |
24 | 40913418 |
25 | 97571239 |
26 | 231337744 |
27 | 545590039 |
28 | 1280487083 |
29 | 2991833084 |
30 | 6961385026 |
31 | 16135193088 |
32 | 37263361364 |
[0,0,0,0,0,0,0,0,1,7,34,129,432,1320,3807,10505, 28094,73290,187579,472612,1175580,2892389,7050272, 17045235,40913418,97571239,231337744,545590039, 1280487083,2991833084,6961385026,16135193088, 37263361364] |