n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 28 |
5 | 93 |
6 | 317 |
7 | 1090 |
8 | 3876 |
9 | 13995 |
10 | 51182 |
11 | 189606 |
12 | 709218 |
13 | 2675230 |
14 | 10166639 |
15 | 38883721 |
16 | 149559230 |
17 | 578153160 |
18 | 2245017535 |
19 | 8752828951 |
20 | 34250020397 |
21 | 134465596581 |
22 | 529509173245 |
23 | 2090920335200 |
24 | 8277633788511 |
25 | 32846871639751 |
26 | 130624556118075 |
27 | 520512049658200 |
[1,1,3,10,28,93,317,1090,3876,13995,51182,189606, 709218,2675230,10166639,38883721,149559230, 578153160,2245017535,8752828951,34250020397, 134465596581,529509173245,2090920335200, 8277633788511,32846871639751,130624556118075, 520512049658200] |