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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -4 |
| 5 | 1 |
| 6 | 1 |
| 7 | -6 |
| 8 | -6 |
| 9 | 1 |
| 10 | 1 |
| 11 | -8 |
| 12 | 11 |
| 13 | -8 |
| 14 | 1 |
| 15 | 1 |
| 16 | -10 |
| 17 | 19 |
| 18 | 19 |
| 19 | -10 |
| 20 | 1 |
| 21 | 1 |
| 22 | -12 |
| 23 | 29 |
| 24 | -40 |
| 25 | 29 |
| 26 | -12 |
| 27 | 1 |
| 28 | 1 |
| 29 | -14 |
| 30 | 41 |
| 31 | -70 |
| 32 | -70 |
| 33 | 41 |
| 34 | -14 |
| 35 | 1 |
| 36 | 1 |
| 37 | -16 |
| 38 | 55 |
| 39 | -112 |
| 40 | 139 |
| 41 | -112 |
| 42 | 55 |
| 43 | -16 |
| 44 | 1 |
| 45 | 1 |
| 46 | -18 |
| 47 | 71 |
| 48 | -168 |
| 49 | 251 |
| 50 | 251 |
| 51 | -168 |
| 52 | 71 |
| 53 | -18 |
| 54 | 1 |
| 55 | 1 |
| 56 | -20 |
| 57 | 89 |
| 58 | -240 |
| 59 | 419 |
| 60 | -504 |
| 61 | 419 |
| 62 | -240 |
| 63 | 89 |
| 64 | -20 |
| 65 | 1 |
[1,1,1,1,-4,1,1,-6,-6,1,1,-8,11,-8,1,1,-10,19,19, -10,1,1,-12,29,-40,29,-12,1,1,-14,41,-70,-70,41, -14,1,1,-16,55,-112,139,-112,55,-16,1,1,-18,71, -168,251,251,-168,71,-18,1,1,-20,89,-240,419,-504, 419,-240,89,-20,1] |