n | a(n) |
---|---|
1 | 4 |
2 | 120 |
3 | 4740 |
4 | 191208 |
5 | 8536230 |
6 | 396419436 |
7 | 18828234948 |
8 | 912456343092 |
9 | 44877327059082 |
10 | 2232846723233916 |
11 | 112156061708925570 |
12 | 5678174300220035688 |
13 | 289386692411558932884 |
14 | 14832527343262783621824 |
15 | 763984636989973669144320 |
[4,120,4740,191208,8536230,396419436,18828234948, 912456343092,44877327059082,2232846723233916, 112156061708925570,5678174300220035688, 289386692411558932884,14832527343262783621824, 763984636989973669144320] |