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A063034 as a simple table
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 7 |
| 7 | -20 |
| 8 | -177 |
| 9 | -842 |
| 10 | -3245 |
| 11 | -10920 |
| 12 | -32396 |
| 13 | -81781 |
| 14 | -151606 |
| 15 | -32368 |
| 16 | 1528436 |
| 17 | 10115847 |
| 18 | 46911627 |
| 19 | 182321874 |
| 20 | 618736524 |
| 21 | 1821588615 |
| 22 | 4363335060 |
| 23 | 6280838340 |
| 24 | -12403999335 |
| 25 | -158989515204 |
| 26 | -893044400094 |
| 27 | -3912400187584 |
[0,1,1,2,4,7,7,-20,-177,-842,-3245,-10920,-32396, -81781,-151606,-32368,1528436,10115847,46911627, 182321874,618736524,1821588615,4363335060, 6280838340,-12403999335,-158989515204, -893044400094,-3912400187584] |