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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -7 |
| 3 | 0 |
| 4 | 49 |
| 5 | 14 |
| 6 | 0 |
| 7 | 28 |
| 8 | -343 |
| 9 | 0 |
| 10 | -98 |
| 11 | 56 |
| 12 | 0 |
| 13 | 70 |
| 14 | -196 |
| 15 | 0 |
| 16 | 2401 |
| 17 | 98 |
| 18 | 0 |
| 19 | 112 |
| 20 | 686 |
| 21 | 0 |
| 22 | -392 |
| 23 | 140 |
| 24 | 0 |
| 25 | 196 |
| 26 | -490 |
| 27 | 0 |
| 28 | 1372 |
| 29 | 182 |
| 30 | 0 |
| 31 | 196 |
| 32 | -16807 |
| 33 | 0 |
| 34 | -686 |
| 35 | 392 |
| 36 | 0 |
| 37 | 238 |
| 38 | -784 |
| 39 | 0 |
| 40 | -4802 |
| 41 | 266 |
| 42 | 0 |
| 43 | 280 |
| 44 | 2744 |
| 45 | 0 |
| 46 | -980 |
| 47 | 308 |
| 48 | 0 |
| 49 | 784 |
| 50 | -1372 |
| 51 | 0 |
| 52 | 3430 |
| 53 | 350 |
| 54 | 0 |
| 55 | 784 |
| 56 | -9604 |
| 57 | 0 |
| 58 | -1274 |
[1,-7,0,49,14,0,28,-343,0,-98,56,0,70,-196,0,2401, 98,0,112,686,0,-392,140,0,196,-490,0,1372,182,0, 196,-16807,0,-686,392,0,238,-784,0,-4802,266,0, 280,2744,0,-980,308,0,784,-1372,0,3430,350,0,784, -9604,0,-1274] |