| n | a(n) |
|---|---|
| 3 | 2 |
| 4 | 2 |
| 5 | 2 |
| 6 | 2 |
| 7 | 6 |
| 8 | 4 |
| 9 | 17 |
| 10 | 24 |
| 11 | 30 |
| 12 | 42 |
| 13 | 72 |
| 14 | 112 |
| 15 | 288 |
| 16 | 420 |
| 17 | 720 |
| 18 | 1568 |
| 19 | 1920 |
| 20 | 3512 |
| 21 | 16560 |
| 22 | 19686 |
| 23 | 16028 |
| 24 | 71280 |
| 25 | 182160 |
| 26 | 184320 |
| 27 | 552960 |
| 28 | 2925648 |
| 29 | 4885160 |
| 30 | 12241152 |
| 31 | 40191471 |
| 32 | 71559680 |
| 33 | 77631750 |
| 34 | 217165824 |
| 35 | 604653336 |
| 36 | 368858880 |
[2,2,2,2,6,4,17,24,30,42,72,112,288,420,720,1568, 1920,3512,16560,19686,16028,71280,182160,184320, 552960,2925648,4885160,12241152,40191471,71559680, 77631750,217165824,604653336,368858880] |