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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 4 |
| 6 | 0 |
| 7 | 9 |
| 8 | 12 |
| 9 | 36 |
| 10 | 0 |
| 11 | 64 |
| 12 | 72 |
| 13 | 144 |
| 14 | 432 |
| 15 | 0 |
| 16 | 625 |
| 17 | 640 |
| 18 | 1080 |
| 19 | 2160 |
| 20 | 6400 |
| 21 | 0 |
| 22 | 7776 |
| 23 | 7500 |
| 24 | 11520 |
| 25 | 19440 |
| 26 | 38400 |
| 27 | 112500 |
| 28 | 0 |
| 29 | 117649 |
| 30 | 108864 |
| 31 | 157500 |
| 32 | 241920 |
| 33 | 403200 |
| 34 | 787500 |
| 35 | 2286144 |
| 36 | 0 |
| 37 | 2097152 |
| 38 | 1882384 |
| 39 | 2612736 |
| 40 | 3780000 |
| 41 | 5734400 |
| 42 | 9450000 |
| 43 | 18289152 |
| 44 | 52706752 |
[0,0,1,0,2,4,0,9,12,36,0,64,72,144,432,0,625,640, 1080,2160,6400,0,7776,7500,11520,19440,38400, 112500,0,117649,108864,157500,241920,403200, 787500,2286144,0,2097152,1882384,2612736,3780000, 5734400,9450000,18289152,52706752] |