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| n | a(n) |
|---|---|
| 7 | 1 |
| 8 | 1106 |
| 9 | 9912 |
| 10 | 27600 |
| 11 | 54450 |
| 12 | 96030 |
| 13 | 160888 |
| 14 | 259896 |
| 15 | 406980 |
| 16 | 620160 |
| 17 | 922488 |
| 18 | 1343034 |
| 19 | 1917993 |
| 20 | 2691920 |
| 21 | 3719100 |
| 22 | 5065060 |
| 23 | 6808230 |
| 24 | 9041760 |
| 25 | 11875500 |
| 26 | 15438150 |
| 27 | 19879587 |
| 28 | 25373376 |
| 29 | 32119472 |
| 30 | 40347120 |
| 31 | 50317960 |
| 32 | 62329344 |
| 33 | 76717872 |
[1,1106,9912,27600,54450,96030,160888,259896, 406980,620160,922488,1343034,1917993,2691920, 3719100,5065060,6808230,9041760,11875500,15438150, 19879587,25373376,32119472,40347120,50317960, 62329344,76717872] |