n | a(n) |
---|---|
0 | 1 |
1 | 22 |
2 | 328 |
3 | 4400 |
4 | 58140 |
5 | 785304 |
6 | 11026296 |
7 | 162186912 |
8 | 2507481216 |
9 | 40788301824 |
10 | 697929436800 |
11 | 12550904017920 |
12 | 236908271543040 |
13 | 4687098165573120 |
14 | 97049168010017280 |
15 | 2099830209402931200 |
16 | 47405948832458496000 |
17 | 1115089078488795648000 |
18 | 27290469545695931904000 |
19 | 694002594415741341696000 |
[1,22,328,4400,58140,785304,11026296,162186912, 2507481216,40788301824,697929436800, 12550904017920,236908271543040,4687098165573120, 97049168010017280,2099830209402931200, 47405948832458496000,1115089078488795648000, 27290469545695931904000,694002594415741341696000] |