n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 27 |
4 | 117 |
5 | 520 |
6 | 2396 |
7 | 11199 |
8 | 53136 |
9 | 254408 |
10 | 1227523 |
11 | 5956859 |
12 | 29040155 |
13 | 142098258 |
14 | 697385628 |
15 | 3431103163 |
16 | 16915366120 |
17 | 83536683684 |
18 | 413145595520 |
19 | 2045816294991 |
20 | 10141226779344 |
21 | 50316618894831 |
22 | 249848483114181 |
23 | 1241486519196133 |
24 | 6172626949421675 |
25 | 30706411193661198 |
26 | 152824177993151011 |
[1,2,7,27,117,520,2396,11199,53136,254408,1227523, 5956859,29040155,142098258,697385628,3431103163, 16915366120,83536683684,413145595520, 2045816294991,10141226779344,50316618894831, 249848483114181,1241486519196133,6172626949421675, 30706411193661198,152824177993151011] |