n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 43 |
4 | 515 |
5 | 7950 |
6 | 150086 |
7 | 3349945 |
8 | 86296849 |
9 | 2519907605 |
10 | 82249222661 |
11 | 2967449372028 |
12 | 117266100841668 |
13 | 5037282382077353 |
14 | 233701540415817409 |
15 | 11645959855678136519 |
16 | 620389246928233860127 |
17 | 35181554115178393462386 |
18 | 2116059351692554708911298 |
[1,1,5,43,515,7950,150086,3349945,86296849, 2519907605,82249222661,2967449372028, 117266100841668,5037282382077353, 233701540415817409,11645959855678136519, 620389246928233860127,35181554115178393462386, 2116059351692554708911298] |