n | a(n) |
---|---|
1 | 2 |
2 | 15 |
3 | 42 |
4 | 1365 |
5 | 2730 |
6 | 451605 |
7 | 870870 |
8 | 140645505 |
9 | 300690390 |
10 | 139098404445 |
11 | 304075581810 |
12 | 217908972526245 |
13 | 485155825624470 |
14 | 378943703223140055 |
15 | 1033538145201932370 |
16 | 1433000638322479231005 |
17 | 1987938667108592728530 |
18 | 4573285492841794762027995 |
19 | 12549856805456545895209890 |
[2,15,42,1365,2730,451605,870870,140645505, 300690390,139098404445,304075581810, 217908972526245,485155825624470, 378943703223140055,1033538145201932370, 1433000638322479231005,1987938667108592728530, 4573285492841794762027995, 12549856805456545895209890] |