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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 28 |
| 6 | 40 |
| 7 | 84 |
| 8 | 120 |
| 9 | 135 |
| 10 | 224 |
| 11 | 270 |
| 12 | 496 |
| 13 | 672 |
| 14 | 819 |
| 15 | 1488 |
| 16 | 1638 |
| 17 | 3780 |
| 18 | 8128 |
| 19 | 10880 |
| 20 | 24384 |
| 21 | 30240 |
| 22 | 32640 |
| 23 | 32760 |
| 24 | 66960 |
| 25 | 167400 |
| 26 | 174592 |
| 27 | 406224 |
| 28 | 523776 |
| 29 | 1097280 |
| 30 | 2178540 |
| 31 | 3138345 |
| 32 | 6276690 |
| 33 | 6517665 |
| 34 | 6656832 |
| 35 | 8910720 |
| 36 | 10480640 |
| 37 | 13035330 |
| 38 | 14705145 |
| 39 | 17428320 |
| 40 | 23569920 |
| 41 | 29410290 |
| 42 | 31441920 |
| 43 | 33550336 |
[1,2,3,6,28,40,84,120,135,224,270,496,672,819, 1488,1638,3780,8128,10880,24384,30240,32640,32760, 66960,167400,174592,406224,523776,1097280,2178540, 3138345,6276690,6517665,6656832,8910720,10480640, 13035330,14705145,17428320,23569920,29410290, 31441920,33550336] |