n | a(n) |
---|---|
6 | 1 |
7 | 5 |
8 | 21 |
9 | 81 |
10 | 297 |
11 | 1052 |
12 | 3635 |
13 | 12333 |
14 | 41255 |
15 | 136449 |
16 | 447147 |
17 | 1454091 |
18 | 4697983 |
19 | 15094393 |
20 | 48264551 |
21 | 153678185 |
22 | 487510286 |
23 | 1541427097 |
24 | 4859385039 |
25 | 15278735029 |
26 | 47923821239 |
27 | 149992151725 |
28 | 468512665975 |
29 | 1460770946689 |
30 | 4546890238683 |
31 | 14131055304241 |
32 | 43854326838403 |
[1,5,21,81,297,1052,3635,12333,41255,136449, 447147,1454091,4697983,15094393,48264551, 153678185,487510286,1541427097,4859385039, 15278735029,47923821239,149992151725,468512665975, 1460770946689,4546890238683,14131055304241, 43854326838403] |