n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 77 |
5 | 594 |
6 | 5737 |
7 | 67216 |
8 | 931584 |
9 | 14968423 |
10 | 274312910 |
11 | 5657512947 |
12 | 129866646887 |
13 | 3287152235160 |
14 | 91025011377693 |
15 | 2738909774003719 |
16 | 89027345548731677 |
17 | 3110096516555803509 |
18 | 116244489639439112395 |
[1,1,3,13,77,594,5737,67216,931584,14968423, 274312910,5657512947,129866646887,3287152235160, 91025011377693,2738909774003719,89027345548731677, 3110096516555803509,116244489639439112395] |