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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 0 |
| 7 | 0 |
| 8 | -2 |
| 9 | 9 |
| 10 | 0 |
| 11 | 0 |
| 12 | 2 |
| 13 | -18 |
| 14 | 64 |
| 15 | 0 |
| 16 | 0 |
| 17 | -2 |
| 18 | 36 |
| 19 | -192 |
| 20 | 625 |
| 21 | 0 |
| 22 | 0 |
| 23 | 2 |
| 24 | -72 |
| 25 | 576 |
| 26 | -2500 |
| 27 | 7776 |
| 28 | 0 |
| 29 | 0 |
| 30 | -2 |
| 31 | 144 |
| 32 | -1728 |
| 33 | 10000 |
| 34 | -38880 |
| 35 | 117649 |
| 36 | 0 |
| 37 | 0 |
| 38 | 2 |
| 39 | -288 |
| 40 | 5184 |
| 41 | -40000 |
| 42 | 194400 |
| 43 | -705894 |
| 44 | 2097152 |
| 45 | 0 |
| 46 | 0 |
| 47 | -2 |
| 48 | 576 |
| 49 | -15552 |
| 50 | 160000 |
| 51 | -972000 |
| 52 | 4235364 |
| 53 | -14680064 |
| 54 | 43046721 |
[0,0,1,0,0,2,0,0,-2,9,0,0,2,-18,64,0,0,-2,36,-192, 625,0,0,2,-72,576,-2500,7776,0,0,-2,144,-1728, 10000,-38880,117649,0,0,2,-288,5184,-40000,194400, -705894,2097152,0,0,-2,576,-15552,160000,-972000, 4235364,-14680064,43046721] |