n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 17 |
4 | 83 |
5 | 394 |
6 | 2278 |
7 | 13949 |
8 | 93898 |
9 | 670003 |
10 | 5059914 |
11 | 40033149 |
12 | 330555726 |
13 | 2836763749 |
14 | 25233047351 |
15 | 232080785282 |
16 | 2202802051834 |
17 | 21539083861802 |
18 | 216638327167235 |
19 | 2238260395921444 |
20 | 23725940481578999 |
[1,1,5,17,83,394,2278,13949,93898,670003,5059914, 40033149,330555726,2836763749,25233047351, 232080785282,2202802051834,21539083861802, 216638327167235,2238260395921444, 23725940481578999] |