n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 17 |
3 | 63 |
4 | 227 |
5 | 827 |
6 | 2999 |
7 | 10897 |
8 | 39561 |
9 | 143677 |
10 | 521721 |
11 | 1894607 |
12 | 6879979 |
13 | 24983923 |
14 | 90725999 |
15 | 329460929 |
16 | 1196397873 |
17 | 4344577397 |
18 | 15776816033 |
19 | 57291635519 |
20 | 208047769363 |
21 | 755500774443 |
22 | 2743511349031 |
23 | 9962735709201 |
24 | 36178491743225 |
25 | 131377896967213 |
26 | 477083233044745 |
[1,5,17,63,227,827,2999,10897,39561,143677,521721, 1894607,6879979,24983923,90725999,329460929, 1196397873,4344577397,15776816033,57291635519, 208047769363,755500774443,2743511349031, 9962735709201,36178491743225,131377896967213, 477083233044745] |