n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 1 |
7 | 5 |
8 | 19 |
9 | 61 |
10 | 180 |
11 | 493 |
12 | 1294 |
13 | 3281 |
14 | 8113 |
15 | 19657 |
16 | 46866 |
17 | 110239 |
18 | 256380 |
19 | 590489 |
20 | 1348509 |
21 | 3056837 |
22 | 6883634 |
23 | 15409942 |
24 | 34313694 |
25 | 76039214 |
26 | 167760748 |
27 | 368626865 |
28 | 806979483 |
29 | 1760508143 |
30 | 3828401370 |
31 | 8300300528 |
[0,0,0,0,0,0,1,5,19,61,180,493,1294,3281,8113, 19657,46866,110239,256380,590489,1348509,3056837, 6883634,15409942,34313694,76039214,167760748, 368626865,806979483,1760508143,3828401370, 8300300528] |