n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 14 |
4 | 76 |
5 | 542 |
6 | 4684 |
7 | 47294 |
8 | 545836 |
9 | 7087262 |
10 | 102247564 |
11 | 1622632574 |
12 | 28091567596 |
13 | 526858348382 |
14 | 10641342970444 |
15 | 230283190977854 |
16 | 5315654681981356 |
17 | 130370767029135902 |
18 | 3385534663256845324 |
[1,2,4,14,76,542,4684,47294,545836,7087262, 102247564,1622632574,28091567596,526858348382, 10641342970444,230283190977854,5315654681981356, 130370767029135902,3385534663256845324] |