The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 8 | 1 |
| 9 | 8 |
| 10 | 36 |
| 11 | 120 |
| 12 | 330 |
| 13 | 792 |
| 14 | 1716 |
| 15 | 3432 |
| 16 | 6435 |
| 17 | 11432 |
| 18 | 19392 |
| 19 | 31592 |
| 20 | 49652 |
| 21 | 75552 |
| 22 | 111624 |
| 23 | 160512 |
| 24 | 225093 |
| 25 | 308352 |
| 26 | 413232 |
| 27 | 542424 |
| 28 | 698146 |
| 29 | 881912 |
| 30 | 1094312 |
| 31 | 1334824 |
| 32 | 1601679 |
| 33 | 1891800 |
| 34 | 2200836 |
| 35 | 2523256 |
| 36 | 2852636 |
| 37 | 3181936 |
| 38 | 3503900 |
| 39 | 3811488 |
| 40 | 4098313 |
| 41 | 4359048 |
| 42 | 4589768 |
| 43 | 4788192 |
| 44 | 4953860 |
[1,8,36,120,330,792,1716,3432,6435,11432,19392, 31592,49652,75552,111624,160512,225093,308352, 413232,542424,698146,881912,1094312,1334824, 1601679,1891800,2200836,2523256,2852636,3181936, 3503900,3811488,4098313,4359048,4589768,4788192, 4953860] |