The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 2 |
| 3 | -1 |
| 4 | -8 |
| 5 | -16 |
| 6 | -15 |
| 7 | 10 |
| 8 | 66 |
| 9 | 127 |
| 10 | 112 |
| 11 | -96 |
| 12 | -543 |
| 13 | -1006 |
| 14 | -830 |
| 15 | 895 |
| 16 | 4456 |
| 17 | 7952 |
| 18 | 6097 |
| 19 | -8166 |
| 20 | -36478 |
| 21 | -62721 |
| 22 | -44320 |
| 23 | 73280 |
| 24 | 297921 |
| 25 | 493602 |
| 26 | 318082 |
| 27 | -648961 |
| 28 | -2427688 |
| 29 | -3875536 |
| 30 | -2246735 |
| 31 | 5685290 |
| 32 | 19739586 |
| 33 | 30355327 |
| 34 | 15546192 |
| 35 | -49357856 |
| 36 | -160163423 |
| 37 | -237157326 |
| 38 | -104629950 |
[1,2,2,-1,-8,-16,-15,10,66,127,112,-96,-543,-1006, -830,895,4456,7952,6097,-8166,-36478,-62721, -44320,73280,297921,493602,318082,-648961, -2427688,-3875536,-2246735,5685290,19739586, 30355327,15546192,-49357856,-160163423,-237157326, -104629950] |