n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 23 |
5 | 73 |
6 | 255 |
7 | 895 |
8 | 3309 |
9 | 12311 |
10 | 47361 |
11 | 183183 |
12 | 724733 |
13 | 2881317 |
14 | 11647367 |
15 | 47278907 |
16 | 194370111 |
17 | 801915951 |
18 | 3341949461 |
19 | 13969919759 |
20 | 58876304081 |
21 | 248789702749 |
22 | 1058454456759 |
23 | 4513481955851 |
24 | 19357097166219 |
25 | 83185584301713 |
26 | 359242498536387 |
27 | 1554197478964649 |
28 | 6752629753488099 |
[1,1,3,7,23,73,255,895,3309,12311,47361,183183, 724733,2881317,11647367,47278907,194370111, 801915951,3341949461,13969919759,58876304081, 248789702749,1058454456759,4513481955851, 19357097166219,83185584301713,359242498536387, 1554197478964649,6752629753488099] |