n | a(n) |
---|---|
12 | 1 |
13 | 13 |
14 | 157 |
15 | 1435 |
16 | 12691 |
17 | 101052 |
18 | 786117 |
19 | 5851328 |
20 | 42963267 |
21 | 308461565 |
22 | 2200106730 |
23 | 15523160964 |
24 | 109276194539 |
25 | 765893045981 |
26 | 5370138366217 |
27 | 37632618874052 |
28 | 264319585797339 |
29 | 1859912789719007 |
30 | 13134267968029320 |
31 | 93063077962184496 |
32 | 662346852662103869 |
[1,13,157,1435,12691,101052,786117,5851328, 42963267,308461565,2200106730,15523160964, 109276194539,765893045981,5370138366217, 37632618874052,264319585797339,1859912789719007, 13134267968029320,93063077962184496, 662346852662103869] |