n | a(n) |
---|---|
0 | 1 |
1 | 13 |
2 | 109 |
3 | 765 |
4 | 4881 |
5 | 29369 |
6 | 169919 |
7 | 956237 |
8 | 5272945 |
9 | 28632525 |
10 | 153638211 |
11 | 816715073 |
12 | 4309138419 |
13 | 22598433555 |
14 | 117926579385 |
15 | 612863125965 |
16 | 3174156512865 |
[1,13,109,765,4881,29369,169919,956237,5272945, 28632525,153638211,816715073,4309138419, 22598433555,117926579385,612863125965, 3174156512865] |