n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 57 |
4 | 471 |
5 | 6159 |
6 | 105987 |
7 | 2207847 |
8 | 53715891 |
9 | 1493742279 |
10 | 46730999667 |
11 | 1624397276487 |
12 | 62111517207411 |
13 | 2590839950614599 |
14 | 117076879593900147 |
15 | 5697526788322329927 |
16 | 297074131510779228531 |
17 | 16522357697381918530119 |
18 | 976355872514689231565427 |
[1,3,12,57,471,6159,105987,2207847,53715891, 1493742279,46730999667,1624397276487, 62111517207411,2590839950614599, 117076879593900147,5697526788322329927, 297074131510779228531,16522357697381918530119, 976355872514689231565427] |