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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 17 |
| 5 | 40 |
| 6 | 132 |
| 7 | 168 |
| 8 | 372 |
| 9 | 1188 |
| 10 | 1404 |
| 11 | 3024 |
| 12 | 9504 |
| 13 | 10800 |
| 14 | 22896 |
| 15 | 71280 |
| 16 | 79056 |
| 17 | 165888 |
| 18 | 513216 |
| 19 | 559872 |
| 20 | 1166400 |
| 21 | 3592512 |
| 22 | 3872448 |
| 23 | 8024832 |
| 24 | 24634368 |
| 25 | 26313984 |
| 26 | 54307584 |
| 27 | 166281984 |
| 28 | 176359680 |
| 29 | 362797056 |
| 30 | 1108546560 |
| 31 | 1169012736 |
[1,3,11,17,40,132,168,372,1188,1404,3024,9504, 10800,22896,71280,79056,165888,513216,559872, 1166400,3592512,3872448,8024832,24634368,26313984, 54307584,166281984,176359680,362797056,1108546560, 1169012736] |