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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | -1 |
| 6 | 2 |
| 7 | -2 |
| 8 | 2 |
| 9 | 0 |
| 10 | -4 |
| 11 | 12 |
| 12 | -24 |
| 13 | 38 |
| 14 | -46 |
| 15 | 33 |
| 16 | 29 |
| 17 | -176 |
| 18 | 443 |
| 19 | -827 |
| 20 | 1222 |
| 21 | -1310 |
| 22 | 433 |
| 23 | 2488 |
| 24 | -8814 |
| 25 | 19528 |
| 26 | -33599 |
| 27 | 44928 |
| 28 | -37805 |
| 29 | -17916 |
| 30 | 168049 |
| 31 | -463252 |
| 32 | 921694 |
| 33 | -1446018 |
| 34 | 1679053 |
| 35 | -808620 |
| 36 | -2598482 |
| 37 | 10515127 |
| 38 | -24690122 |
| 39 | 44515322 |
| 40 | -62719429 |
| 41 | 58496244 |
| 42 | 10670109 |
| 43 | -213311788 |
| 44 | 632128236 |
[1,1,0,0,1,-1,2,-2,2,0,-4,12,-24,38,-46,33,29, -176,443,-827,1222,-1310,433,2488,-8814,19528, -33599,44928,-37805,-17916,168049,-463252,921694, -1446018,1679053,-808620,-2598482,10515127, -24690122,44515322,-62719429,58496244,10670109, -213311788,632128236] |