The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 2 |
| 5 | -2 |
| 6 | 4 |
| 7 | -2 |
| 8 | 10 |
| 9 | 8 |
| 10 | 4 |
| 11 | -8 |
| 12 | 16 |
| 13 | -8 |
| 14 | 8 |
| 15 | 8 |
| 16 | 42 |
| 17 | -14 |
| 18 | 28 |
| 19 | -14 |
| 20 | 12 |
| 21 | 16 |
| 22 | 4 |
| 23 | -16 |
| 24 | 72 |
| 25 | 6 |
| 26 | 8 |
| 27 | 64 |
| 28 | 28 |
| 29 | -26 |
| 30 | 16 |
| 31 | -24 |
| 32 | 170 |
| 33 | 8 |
| 34 | 4 |
| 35 | 20 |
| 36 | 144 |
| 37 | -32 |
| 38 | 8 |
| 39 | 16 |
| 40 | 52 |
| 41 | -38 |
| 42 | 40 |
| 43 | -38 |
| 44 | 0 |
| 45 | 40 |
| 46 | 12 |
| 47 | -40 |
| 48 | 328 |
| 49 | 30 |
| 50 | 28 |
| 51 | 8 |
| 52 | 16 |
| 53 | -46 |
| 54 | 228 |
| 55 | 24 |
| 56 | 124 |
| 57 | 16 |
| 58 | 4 |
| 59 | -56 |
| 60 | 112 |
| 61 | -54 |
| 62 | 12 |
| 63 | 96 |
| 64 | 682 |
| 65 | 32 |
| 66 | -8 |
| 67 | -62 |
| 68 | -12 |
| 69 | 24 |
| 70 | 24 |
| 71 | -68 |
| 72 | 712 |
| 73 | -66 |
| 74 | 8 |
| 75 | 56 |
| 76 | 4 |
| 77 | 32 |
| 78 | 16 |
[1,0,0,2,-2,4,-2,10,8,4,-8,16,-8,8,8,42,-14,28, -14,12,16,4,-16,72,6,8,64,28,-26,16,-24,170,8,4, 20,144,-32,8,16,52,-38,40,-38,0,40,12,-40,328,30, 28,8,16,-46,228,24,124,16,4,-56,112,-54,12,96,682, 32,-8,-62,-12,24,24,-68,712,-66,8,56,4,32,16] |