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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 360 |
| 3 | 360 |
| 4 | 1683 |
| 5 | 1812 |
| 6 | 1683 |
| 7 | 7572 |
| 8 | 9318 |
| 9 | 9318 |
| 10 | 7572 |
| 11 | 35577 |
| 12 | 47106 |
| 13 | 57258 |
| 14 | 47106 |
| 15 | 35577 |
| 16 | 160218 |
| 17 | 243432 |
| 18 | 319698 |
| 19 | 319698 |
| 20 | 243432 |
| 21 | 160218 |
| 22 | 750426 |
| 23 | 1242930 |
| 24 | 1941084 |
| 25 | 2046168 |
| 26 | 1941084 |
| 27 | 1242930 |
| 28 | 750426 |
| 29 | 3387924 |
| 30 | 6474150 |
| 31 | 11368056 |
| 32 | 14200242 |
[81,360,360,1683,1812,1683,7572,9318,9318,7572, 35577,47106,57258,47106,35577,160218,243432, 319698,319698,243432,160218,750426,1242930, 1941084,2046168,1941084,1242930,750426,3387924, 6474150,11368056,14200242] |