n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 9 |
4 | 68 |
5 | 715 |
6 | 9527 |
7 | 152789 |
8 | 2856984 |
9 | 60962112 |
10 | 1461364051 |
11 | 38885737209 |
12 | 1137587558289 |
13 | 36299474019445 |
14 | 1254966476969859 |
15 | 46739853740801293 |
16 | 1865947811034153032 |
17 | 79499993864122690971 |
18 | 3600874278814894340648 |
[1,1,2,9,68,715,9527,152789,2856984,60962112, 1461364051,38885737209,1137587558289, 36299474019445,1254966476969859,46739853740801293, 1865947811034153032,79499993864122690971, 3600874278814894340648] |