Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 0 |
1 | -1 |
2 | 1 |
3 | 0 |
4 | 2 |
5 | 1 |
6 | 8 |
7 | 10 |
8 | 39 |
9 | 72 |
10 | 225 |
11 | 506 |
12 | 1434 |
13 | 3550 |
14 | 9767 |
15 | 25391 |
16 | 69293 |
17 | 185061 |
18 | 505843 |
19 | 1372744 |
20 | 3769842 |
21 | 10339104 |
22 | 28546539 |
23 | 78890525 |
24 | 218945822 |
25 | 608657861 |
26 | 1697106780 |
27 | 4740593393 |
28 | 13272626627 |
29 | 37224982494 |
30 | 104599603493 |
31 | 294384019508 |
32 | 829836855332 |
[0,-1,1,0,2,1,8,10,39,72,225,506,1434,3550,9767, 25391,69293,185061,505843,1372744,3769842, 10339104,28546539,78890525,218945822,608657861, 1697106780,4740593393,13272626627,37224982494, 104599603493,294384019508,829836855332] |