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| n | a(n) |
|---|---|
| 7 | 1 |
| 8 | 1 |
| 9 | 4 |
| 10 | 12 |
| 11 | 30 |
| 12 | 66 |
| 13 | 132 |
| 14 | 246 |
| 15 | 429 |
| 16 | 715 |
| 17 | 1144 |
| 18 | 1768 |
| 19 | 2652 |
| 20 | 3876 |
| 21 | 5538 |
| 22 | 7752 |
| 23 | 10659 |
| 24 | 14421 |
| 25 | 19228 |
| 26 | 25300 |
| 27 | 32890 |
| 28 | 42288 |
| 29 | 53820 |
| 30 | 67860 |
| 31 | 84825 |
| 32 | 105183 |
| 33 | 129456 |
| 34 | 158224 |
| 35 | 192130 |
| 36 | 231880 |
| 37 | 278256 |
| 38 | 332112 |
| 39 | 394383 |
| 40 | 466089 |
| 41 | 548340 |
[1,1,4,12,30,66,132,246,429,715,1144,1768,2652, 3876,5538,7752,10659,14421,19228,25300,32890, 42288,53820,67860,84825,105183,129456,158224, 192130,231880,278256,332112,394383,466089,548340] |