n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 40 |
5 | 114 |
6 | 324 |
7 | 920 |
8 | 2612 |
9 | 7416 |
10 | 21056 |
11 | 59784 |
12 | 169744 |
13 | 481952 |
14 | 1368400 |
15 | 3885280 |
16 | 11031424 |
17 | 31321376 |
18 | 88930368 |
19 | 252498816 |
20 | 716916544 |
21 | 2035531648 |
22 | 5779458048 |
23 | 16409538688 |
24 | 46591385856 |
25 | 132286304768 |
26 | 375598753024 |
27 | 1066432564736 |
28 | 3027907856384 |
[1,2,5,14,40,114,324,920,2612,7416,21056,59784, 169744,481952,1368400,3885280,11031424,31321376, 88930368,252498816,716916544,2035531648, 5779458048,16409538688,46591385856,132286304768, 375598753024,1066432564736,3027907856384] |