n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 54 |
4 | 553 |
5 | 7100 |
6 | 109863 |
7 | 1991752 |
8 | 41426257 |
9 | 972602640 |
10 | 25447064743 |
11 | 734276705888 |
12 | 23166635069241 |
13 | 793426715543488 |
14 | 29316839407495111 |
15 | 1162492244159875200 |
16 | 49240280161094287777 |
17 | 2218952409252783579392 |
[1,1,7,54,553,7100,109863,1991752,41426257, 972602640,25447064743,734276705888,23166635069241, 793426715543488,29316839407495111, 1162492244159875200,49240280161094287777, 2218952409252783579392] |