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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 27 |
| 3 | 176 |
| 4 | 640 |
| 5 | 1707 |
| 6 | 3760 |
| 7 | 7280 |
| 8 | 12842 |
| 9 | 21120 |
| 10 | 32880 |
| 11 | 48986 |
| 12 | 70400 |
| 13 | 98176 |
| 14 | 133466 |
| 15 | 177520 |
| 16 | 231680 |
| 17 | 297386 |
| 18 | 376176 |
| 19 | 469680 |
| 20 | 579626 |
| 21 | 707840 |
| 22 | 856240 |
| 23 | 1026842 |
| 24 | 1221760 |
| 25 | 1443200 |
| 26 | 1693466 |
| 27 | 1974960 |
| 28 | 2290176 |
| 29 | 2641706 |
| 30 | 3032240 |
| 31 | 3464560 |
[1,27,176,640,1707,3760,7280,12842,21120,32880, 48986,70400,98176,133466,177520,231680,297386, 376176,469680,579626,707840,856240,1026842, 1221760,1443200,1693466,1974960,2290176,2641706, 3032240,3464560] |