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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | -3 |
| 2 | 1 |
| 3 | 41 |
| 4 | 171 |
| 5 | 469 |
| 6 | 1037 |
| 7 | 2001 |
| 8 | 3511 |
| 9 | 5741 |
| 10 | 8889 |
| 11 | 13177 |
| 12 | 18851 |
| 13 | 26181 |
| 14 | 35461 |
| 15 | 47009 |
| 16 | 61167 |
| 17 | 78301 |
| 18 | 98801 |
| 19 | 123081 |
| 20 | 151579 |
| 21 | 184757 |
| 22 | 223101 |
| 23 | 267121 |
| 24 | 317351 |
| 25 | 374349 |
| 26 | 438697 |
| 27 | 511001 |
| 28 | 591891 |
| 29 | 682021 |
| 30 | 782069 |
| 31 | 892737 |
| 32 | 1014751 |
| 33 | 1148861 |
| 34 | 1295841 |
| 35 | 1456489 |
| 36 | 1631627 |
| 37 | 1822101 |
| 38 | 2028781 |
| 39 | 2252561 |
| 40 | 2494359 |
[-1,-3,1,41,171,469,1037,2001,3511,5741,8889, 13177,18851,26181,35461,47009,61167,78301,98801, 123081,151579,184757,223101,267121,317351,374349, 438697,511001,591891,682021,782069,892737,1014751, 1148861,1295841,1456489,1631627,1822101,2028781, 2252561,2494359] |