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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -2 |
| 2 | 4 |
| 3 | -8 |
| 4 | 14 |
| 5 | -24 |
| 6 | 40 |
| 7 | -64 |
| 8 | 100 |
| 9 | -152 |
| 10 | 228 |
| 11 | -336 |
| 12 | 488 |
| 13 | -700 |
| 14 | 992 |
| 15 | -1392 |
| 16 | 1934 |
| 17 | -2664 |
| 18 | 3640 |
| 19 | -4936 |
| 20 | 6648 |
| 21 | -8896 |
| 22 | 11832 |
| 23 | -15648 |
| 24 | 20584 |
| 25 | -26942 |
| 26 | 35096 |
| 27 | -45512 |
| 28 | 58768 |
| 29 | -75576 |
| 30 | 96816 |
| 31 | -123568 |
| 32 | 157156 |
| 33 | -199200 |
| 34 | 251676 |
| 35 | -316992 |
| 36 | 398072 |
| 37 | -498460 |
| 38 | 622448 |
| 39 | -775216 |
[1,-2,4,-8,14,-24,40,-64,100,-152,228,-336,488, -700,992,-1392,1934,-2664,3640,-4936,6648,-8896, 11832,-15648,20584,-26942,35096,-45512,58768, -75576,96816,-123568,157156,-199200,251676, -316992,398072,-498460,622448,-775216] |