n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 69 |
4 | 560 |
5 | 6059 |
6 | 83215 |
7 | 1399161 |
8 | 28020221 |
9 | 654110586 |
10 | 17494347067 |
11 | 528556017365 |
12 | 17830841841940 |
13 | 665126088764191 |
14 | 27208111182653865 |
15 | 1211942062741823574 |
16 | 58424831462907214924 |
17 | 3031993693950136247986 |
[1,3,12,69,560,6059,83215,1399161,28020221, 654110586,17494347067,528556017365,17830841841940, 665126088764191,27208111182653865, 1211942062741823574,58424831462907214924, 3031993693950136247986] |