n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 1 |
10 | 9 |
11 | 54 |
12 | 276 |
13 | 1282 |
14 | 5585 |
15 | 23223 |
16 | 93146 |
17 | 362928 |
18 | 1380535 |
19 | 5145692 |
20 | 18846775 |
21 | 67982489 |
22 | 241940204 |
23 | 850777688 |
24 | 2959796467 |
25 | 10197732687 |
26 | 34828459508 |
27 | 118003182174 |
28 | 396897710483 |
29 | 1326018464696 |
30 | 4402883891950 |
31 | 14536059784925 |
32 | 47737688829399 |
[0,0,0,0,0,0,0,0,1,9,54,276,1282,5585,23223,93146, 362928,1380535,5145692,18846775,67982489, 241940204,850777688,2959796467,10197732687, 34828459508,118003182174,396897710483, 1326018464696,4402883891950,14536059784925, 47737688829399] |