n | a(n) |
---|---|
1 | 24 |
2 | 140 |
3 | 646 |
4 | 3556 |
5 | 20240 |
6 | 113884 |
7 | 645780 |
8 | 3685550 |
9 | 21117750 |
10 | 121503530 |
11 | 701432670 |
12 | 4060132070 |
13 | 23557575574 |
14 | 136975281374 |
15 | 797920002262 |
16 | 4655761528566 |
17 | 27205829211568 |
18 | 159187551327960 |
19 | 932560727269722 |
[24,140,646,3556,20240,113884,645780,3685550, 21117750,121503530,701432670,4060132070, 23557575574,136975281374,797920002262, 4655761528566,27205829211568,159187551327960, 932560727269722] |