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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | -2 |
| 4 | -5 |
| 5 | -3 |
| 6 | 5 |
| 7 | 20 |
| 8 | 27 |
| 9 | 17 |
| 10 | -53 |
| 11 | -152 |
| 12 | -192 |
| 13 | 31 |
| 14 | 576 |
| 15 | 1110 |
| 16 | 694 |
| 17 | -1297 |
| 18 | -4519 |
| 19 | -6160 |
| 20 | -1107 |
| 21 | 13665 |
| 22 | 31914 |
| 23 | 30643 |
| 24 | -19339 |
| 25 | -119260 |
| 26 | -196142 |
| 27 | -103318 |
| 28 | 289543 |
| 29 | 859631 |
| 30 | 1062684 |
| 31 | 13710 |
| 32 | -2690348 |
| 33 | -5675946 |
| 34 | -4940757 |
| 35 | 4167527 |
| 36 | 21343918 |
| 37 | 33874107 |
| 38 | 16524162 |
| 39 | -51704908 |
| 40 | -150454546 |
[1,1,0,-2,-5,-3,5,20,27,17,-53,-152,-192,31,576, 1110,694,-1297,-4519,-6160,-1107,13665,31914, 30643,-19339,-119260,-196142,-103318,289543, 859631,1062684,13710,-2690348,-5675946,-4940757, 4167527,21343918,33874107,16524162,-51704908, -150454546] |