n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 5 |
9 | 31 |
10 | 185 |
11 | 947 |
12 | 4564 |
13 | 21004 |
14 | 93833 |
15 | 410295 |
16 | 1765378 |
17 | 7504024 |
18 | 31591157 |
19 | 131982937 |
20 | 547971412 |
21 | 2263443059 |
22 | 9309302775 |
23 | 38149945673 |
24 | 155858903955 |
25 | 635066943350 |
26 | 2581736396181 |
[0,0,0,0,0,0,0,5,31,185,947,4564,21004,93833, 410295,1765378,7504024,31591157,131982937, 547971412,2263443059,9309302775,38149945673, 155858903955,635066943350,2581736396181] |