n | a(n) |
---|---|
0 | 1 |
1 | 55 |
2 | 4895 |
3 | 352440 |
4 | 27372840 |
5 | 2063912136 |
6 | 157373300370 |
7 | 11948265189630 |
8 | 908637119420910 |
9 | 69056421075989160 |
10 | 5249543573067466872 |
11 | 399024295188779925720 |
12 | 30331388438447118520355 |
[1,55,4895,352440,27372840,2063912136, 157373300370,11948265189630,908637119420910, 69056421075989160,5249543573067466872, 399024295188779925720,30331388438447118520355] |