n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 102 |
4 | 1712 |
5 | 34785 |
6 | 819384 |
7 | 21810124 |
8 | 645122272 |
9 | 20957720148 |
10 | 741260263600 |
11 | 28350052179438 |
12 | 1165931175542064 |
13 | 51320048879474206 |
14 | 2407857124657086480 |
15 | 119990501174741855400 |
16 | 6330579163195128292800 |
17 | 352584892981590315935084 |
18 | 20675941712941698695206368 |
19 | 1273517057922072215818491064 |
20 | 82210136955409063394289646720 |
[1,1,8,102,1712,34785,819384,21810124,645122272, 20957720148,741260263600,28350052179438, 1165931175542064,51320048879474206, 2407857124657086480,119990501174741855400, 6330579163195128292800,352584892981590315935084, 20675941712941698695206368, 1273517057922072215818491064, 82210136955409063394289646720] |