n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 3 |
3 | 3 |
4 | 30 |
5 | 65 |
6 | 434 |
7 | 1384 |
8 | 7847 |
9 | 30749 |
10 | 162310 |
11 | 714126 |
12 | 3667411 |
13 | 17254387 |
14 | 88023109 |
15 | 431259271 |
16 | 2206144905 |
17 | 11092437052 |
18 | 57117060880 |
19 | 292296895499 |
20 | 1516673564569 |
21 | 7861699769116 |
22 | 41103663171314 |
23 | 215169677630869 |
24 | 1132925333732196 |
25 | 5977775212622087 |
26 | 31674824100293083 |
27 | 168233379153239317 |
[1,0,3,3,30,65,434,1384,7847,30749,162310,714126, 3667411,17254387,88023109,431259271,2206144905, 11092437052,57117060880,292296895499, 1516673564569,7861699769116,41103663171314, 215169677630869,1132925333732196,5977775212622087, 31674824100293083,168233379153239317] |