n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 19 |
4 | 85 |
5 | 381 |
6 | 1751 |
7 | 8135 |
8 | 38165 |
9 | 180325 |
10 | 856945 |
11 | 4091495 |
12 | 19611175 |
13 | 94309099 |
14 | 454805755 |
15 | 2198649549 |
16 | 10651488789 |
17 | 51698642405 |
18 | 251345549849 |
19 | 1223798004815 |
20 | 5966636799745 |
21 | 29125608152345 |
22 | 142330448514875 |
23 | 696235630761115 |
24 | 3408895901222375 |
[1,1,5,19,85,381,1751,8135,38165,180325,856945, 4091495,19611175,94309099,454805755,2198649549, 10651488789,51698642405,251345549849, 1223798004815,5966636799745,29125608152345, 142330448514875,696235630761115,3408895901222375] |