n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 6 |
6 | 27 |
7 | 160 |
8 | 1183 |
9 | 10477 |
10 | 108149 |
11 | 1275024 |
12 | 16903440 |
13 | 248915119 |
14 | 4031045212 |
15 | 71202358081 |
16 | 1362297883463 |
17 | 28066342411395 |
18 | 619474462826562 |
19 | 14583353438928682 |
20 | 364748466791800669 |
21 | 9658964416375216576 |
22 | 269978766441123241685 |
23 | 7943074999430019396711 |
[1,1,1,2,6,27,160,1183,10477,108149,1275024, 16903440,248915119,4031045212,71202358081, 1362297883463,28066342411395,619474462826562, 14583353438928682,364748466791800669, 9658964416375216576,269978766441123241685, 7943074999430019396711] |