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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -5 |
| 2 | 61 |
| 3 | -1217 |
| 4 | 38137 |
| 5 | -1753245 |
| 6 | 112141173 |
| 7 | -9583252569 |
| 8 | 1057866255601 |
| 9 | -146689651631285 |
| 10 | 24972471277262509 |
| 11 | -5121374164476105329 |
| 12 | 1245379275329762046441 |
| 13 | -354323420531627060286029 |
[1,-5,61,-1217,38137,-1753245,112141173, -9583252569,1057866255601,-146689651631285, 24972471277262509,-5121374164476105329, 1245379275329762046441,-354323420531627060286029] |