n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 0 |
6 | 5 |
7 | 14 |
8 | 62 |
9 | 298 |
10 | 1494 |
11 | 8140 |
12 | 47146 |
13 | 289250 |
14 | 1873304 |
15 | 12756416 |
16 | 91062073 |
17 | 679616480 |
18 | 5290206513 |
19 | 42858740990 |
20 | 360686972473 |
21 | 3147670023632 |
22 | 28439719809159 |
23 | 265647698228954 |
24 | 2561823514680235 |
25 | 25475177517626196 |
26 | 260922963832247729 |
27 | 2749617210928715246 |
[1,0,0,0,1,0,5,14,62,298,1494,8140,47146,289250, 1873304,12756416,91062073,679616480,5290206513, 42858740990,360686972473,3147670023632, 28439719809159,265647698228954,2561823514680235, 25475177517626196,260922963832247729, 2749617210928715246] |