n | a(n) |
---|---|
0 | 2 |
1 | 5 |
2 | 27 |
3 | 140 |
4 | 727 |
5 | 3775 |
6 | 19602 |
7 | 101785 |
8 | 528527 |
9 | 2744420 |
10 | 14250627 |
11 | 73997555 |
12 | 384238402 |
13 | 1995189565 |
14 | 10360186227 |
15 | 53796120700 |
16 | 279340789727 |
17 | 1450500069335 |
18 | 7531841136402 |
19 | 39109705751345 |
20 | 203080369893127 |
[2,5,27,140,727,3775,19602,101785,528527,2744420, 14250627,73997555,384238402,1995189565, 10360186227,53796120700,279340789727, 1450500069335,7531841136402,39109705751345, 203080369893127] |