n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 28 |
3 | 156 |
4 | 863 |
5 | 4571 |
6 | 22952 |
7 | 108182 |
8 | 477136 |
9 | 1969270 |
10 | 7625579 |
11 | 27804973 |
12 | 95858868 |
13 | 313747418 |
14 | 978734539 |
15 | 2920530663 |
16 | 8363945469 |
17 | 23057872913 |
18 | 61357278239 |
19 | 157985305473 |
20 | 394486861086 |
21 | 957156158394 |
22 | 2260761331227 |
[1,5,28,156,863,4571,22952,108182,477136,1969270, 7625579,27804973,95858868,313747418,978734539, 2920530663,8363945469,23057872913,61357278239, 157985305473,394486861086,957156158394, 2260761331227] |