n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 21 |
3 | 440 |
4 | 9219 |
5 | 193159 |
6 | 4047120 |
7 | 84796361 |
8 | 1776676461 |
9 | 37225409320 |
10 | 779956919259 |
11 | 16341869895119 |
12 | 342399310878240 |
13 | 7174043658547921 |
14 | 150312517518628101 |
15 | 3149388824232642200 |
16 | 65986852791366858099 |
[0,1,21,440,9219,193159,4047120,84796361, 1776676461,37225409320,779956919259, 16341869895119,342399310878240,7174043658547921, 150312517518628101,3149388824232642200, 65986852791366858099] |