n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 30 |
6 | 76 |
7 | 195 |
8 | 504 |
9 | 1309 |
10 | 3410 |
11 | 8900 |
12 | 23256 |
13 | 60813 |
14 | 159094 |
15 | 416325 |
16 | 1089648 |
17 | 2852242 |
18 | 7466468 |
19 | 19546175 |
20 | 51170460 |
21 | 133962621 |
22 | 350713222 |
23 | 918170280 |
24 | 2403786672 |
25 | 6293172025 |
26 | 16475700746 |
27 | 43133883845 |
28 | 112925875764 |
[1,2,5,12,30,76,195,504,1309,3410,8900,23256, 60813,159094,416325,1089648,2852242,7466468, 19546175,51170460,133962621,350713222,918170280, 2403786672,6293172025,16475700746,43133883845, 112925875764] |