The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -2 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 2 |
| 9 | 1 |
| 10 | 1 |
| 11 | 2 |
| 12 | -2 |
| 13 | 2 |
| 14 | 1 |
| 15 | 1 |
| 16 | -6 |
| 17 | 6 |
| 18 | 6 |
| 19 | -6 |
| 20 | 1 |
| 21 | 1 |
| 22 | -14 |
| 23 | -42 |
| 24 | -42 |
| 25 | -42 |
| 26 | -14 |
| 27 | 1 |
| 28 | 1 |
| 29 | 26 |
| 30 | 182 |
| 31 | -546 |
| 32 | -546 |
| 33 | 182 |
| 34 | 26 |
| 35 | 1 |
| 36 | 1 |
| 37 | 178 |
| 38 | -2314 |
| 39 | 16198 |
| 40 | -48594 |
| 41 | 16198 |
| 42 | -2314 |
| 43 | 178 |
| 44 | 1 |
| 45 | 1 |
| 46 | 90 |
| 47 | -8010 |
| 48 | -104130 |
| 49 | 728910 |
| 50 | 728910 |
| 51 | -104130 |
| 52 | -8010 |
| 53 | 90 |
| 54 | 1 |
| 55 | 1 |
| 56 | -2382 |
| 57 | 107190 |
[1,1,1,1,-2,1,1,2,2,1,1,2,-2,2,1,1,-6,6,6,-6,1,1, -14,-42,-42,-42,-14,1,1,26,182,-546,-546,182,26,1, 1,178,-2314,16198,-48594,16198,-2314,178,1,1,90, -8010,-104130,728910,728910,-104130,-8010,90,1,1, -2382,107190] |