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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -2 |
| 3 | 6 |
| 4 | 6 |
| 5 | -150 |
| 6 | 522 |
| 7 | 3654 |
| 8 | -53226 |
| 9 | 104490 |
| 10 | 4132458 |
| 11 | -47627514 |
| 12 | -114714954 |
| 13 | 8856035370 |
| 14 | -75897566838 |
| 15 | -1028068746426 |
| 16 | 31770904056534 |
| 17 | -135504089273430 |
| 18 | -8135851530983382 |
| 19 | 169470347331164166 |
| 20 | 532060336564506486 |
| 21 | -82392155996494676310 |
| 22 | 1171058783000050544202 |
| 23 | 21934887486351381588294 |
| 24 | -1082420392535043092192106 |
| 25 | 7667454997532070585239850 |
| 26 | 570833713563794519922918378 |
[1,0,-2,6,6,-150,522,3654,-53226,104490,4132458, -47627514,-114714954,8856035370,-75897566838, -1028068746426,31770904056534,-135504089273430, -8135851530983382,169470347331164166, 532060336564506486,-82392155996494676310, 1171058783000050544202,21934887486351381588294, -1082420392535043092192106, 7667454997532070585239850, 570833713563794519922918378] |