n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 16 |
3 | 75 |
4 | 385 |
5 | 1971 |
6 | 10473 |
7 | 56139 |
8 | 305394 |
9 | 1674198 |
10 | 9245506 |
11 | 51325206 |
12 | 286210243 |
13 | 1601822505 |
14 | 8992732043 |
15 | 50619114252 |
16 | 285583525237 |
17 | 1614439389711 |
18 | 9142794839933 |
19 | 51858472602546 |
20 | 294559269778199 |
21 | 1675240507900632 |
22 | 9538522900076376 |
23 | 54367531265208579 |
24 | 310179797595736539 |
[1,3,16,75,385,1971,10473,56139,305394,1674198, 9245506,51325206,286210243,1601822505,8992732043, 50619114252,285583525237,1614439389711, 9142794839933,51858472602546,294559269778199, 1675240507900632,9538522900076376, 54367531265208579,310179797595736539] |