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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 255 |
| 3 | 255 |
| 4 | 770 |
| 5 | 1097 |
| 6 | 770 |
| 7 | 2475 |
| 8 | 4452 |
| 9 | 4452 |
| 10 | 2475 |
| 11 | 7967 |
| 12 | 19851 |
| 13 | 23675 |
| 14 | 19851 |
| 15 | 7967 |
| 16 | 26320 |
| 17 | 87889 |
| 18 | 145124 |
| 19 | 145124 |
| 20 | 87889 |
| 21 | 26320 |
| 22 | 87685 |
| 23 | 405350 |
| 24 | 867928 |
| 25 | 1287919 |
| 26 | 867928 |
| 27 | 405350 |
| 28 | 87685 |
| 29 | 296341 |
| 30 | 1877803 |
| 31 | 5547565 |
| 32 | 10951425 |
| 33 | 10951425 |
| 34 | 5547565 |
[81,255,255,770,1097,770,2475,4452,4452,2475,7967, 19851,23675,19851,7967,26320,87889,145124,145124, 87889,26320,87685,405350,867928,1287919,867928, 405350,87685,296341,1877803,5547565,10951425, 10951425,5547565] |