n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 70 |
4 | 1242 |
5 | 29766 |
6 | 901108 |
7 | 33007500 |
8 | 1419955260 |
9 | 70189326748 |
10 | 3920638941576 |
11 | 244244850932424 |
12 | 16790688671875000 |
13 | 1262666306235233160 |
14 | 103110586277262570672 |
15 | 9086730135842989237456 |
16 | 859557307380692050631952 |
17 | 86872483166310571406250000 |
[1,1,6,70,1242,29766,901108,33007500,1419955260, 70189326748,3920638941576,244244850932424, 16790688671875000,1262666306235233160, 103110586277262570672,9086730135842989237456, 859557307380692050631952, 86872483166310571406250000] |