n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 17 |
3 | 49 |
4 | 261 |
5 | 1081 |
6 | 3993 |
7 | 15521 |
8 | 61921 |
9 | 248613 |
10 | 997825 |
11 | 3981665 |
12 | 15954309 |
13 | 63723117 |
14 | 255045061 |
15 | 1019793809 |
[1,5,17,49,261,1081,3993,15521,61921,248613, 997825,3981665,15954309,63723117,255045061, 1019793809] |