n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 38 |
4 | 272 |
5 | 2444 |
6 | 26306 |
7 | 330588 |
8 | 4746360 |
9 | 76675584 |
10 | 1376187072 |
11 | 27171073632 |
12 | 585216675600 |
13 | 13655030234208 |
14 | 343124183767920 |
15 | 9237920561327904 |
16 | 265292717180631552 |
17 | 8094790891854169344 |
18 | 261522698597072168832 |
19 | 8918551194519088836864 |
[1,2,7,38,272,2444,26306,330588,4746360,76675584, 1376187072,27171073632,585216675600, 13655030234208,343124183767920,9237920561327904, 265292717180631552,8094790891854169344, 261522698597072168832,8918551194519088836864] |