n | a(n) |
---|---|
9 | 1 |
10 | 8 |
11 | 80 |
12 | 524 |
13 | 2696 |
14 | 11398 |
15 | 41674 |
16 | 135315 |
17 | 398912 |
18 | 1083702 |
19 | 2746382 |
20 | 6552828 |
21 | 14833263 |
22 | 32050976 |
23 | 66448542 |
24 | 132748327 |
25 | 256487544 |
26 | 480786785 |
27 | 876729065 |
28 | 1558922942 |
29 | 2708486023 |
30 | 4606366231 |
31 | 7681025200 |
32 | 12575626106 |
33 | 20241643485 |
[1,8,80,524,2696,11398,41674,135315,398912, 1083702,2746382,6552828,14833263,32050976, 66448542,132748327,256487544,480786785,876729065, 1558922942,2708486023,4606366231,7681025200, 12575626106,20241643485] |