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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 327 |
| 3 | 327 |
| 4 | 1386 |
| 5 | 2211 |
| 6 | 1386 |
| 7 | 6093 |
| 8 | 15254 |
| 9 | 15254 |
| 10 | 6093 |
| 11 | 27079 |
| 12 | 109205 |
| 13 | 168564 |
| 14 | 109205 |
| 15 | 27079 |
| 16 | 121590 |
| 17 | 786609 |
| 18 | 1949236 |
| 19 | 1949236 |
| 20 | 786609 |
| 21 | 121590 |
| 22 | 549173 |
| 23 | 5747502 |
| 24 | 22695802 |
| 25 | 36874967 |
| 26 | 22695802 |
| 27 | 5747502 |
| 28 | 549173 |
| 29 | 2495215 |
| 30 | 42215123 |
| 31 | 269108894 |
[81,327,327,1386,2211,1386,6093,15254,15254,6093, 27079,109205,168564,109205,27079,121590,786609, 1949236,1949236,786609,121590,549173,5747502, 22695802,36874967,22695802,5747502,549173,2495215, 42215123,269108894] |