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| n | a(n) |
|---|---|
| 1 | 81 |
| 2 | 384 |
| 3 | 384 |
| 4 | 1848 |
| 5 | 2460 |
| 6 | 1848 |
| 7 | 8856 |
| 8 | 14980 |
| 9 | 14980 |
| 10 | 8856 |
| 11 | 42724 |
| 12 | 93640 |
| 13 | 116786 |
| 14 | 93640 |
| 15 | 42724 |
| 16 | 205660 |
| 17 | 595416 |
| 18 | 965344 |
| 19 | 965344 |
| 20 | 595416 |
| 21 | 205660 |
| 22 | 990076 |
| 23 | 3752292 |
| 24 | 8289258 |
| 25 | 11384132 |
| 26 | 8289258 |
| 27 | 3752292 |
| 28 | 990076 |
| 29 | 4760380 |
| 30 | 23516900 |
| 31 | 68613596 |
[81,384,384,1848,2460,1848,8856,14980,14980,8856, 42724,93640,116786,93640,42724,205660,595416, 965344,965344,595416,205660,990076,3752292, 8289258,11384132,8289258,3752292,990076,4760380, 23516900,68613596] |