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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 6 |
| 4 | 450 |
| 5 | 2872 |
| 6 | 8522 |
| 7 | 17564 |
| 8 | 29834 |
| 9 | 45255 |
| 10 | 63814 |
| 11 | 85511 |
| 12 | 110346 |
| 13 | 138319 |
| 14 | 169430 |
| 15 | 203679 |
| 16 | 241066 |
| 17 | 281591 |
| 18 | 325254 |
| 19 | 372055 |
| 20 | 421994 |
| 21 | 475071 |
| 22 | 531286 |
| 23 | 590639 |
| 24 | 653130 |
| 25 | 718759 |
| 26 | 787526 |
| 27 | 859431 |
| 28 | 934474 |
| 29 | 1012655 |
| 30 | 1093974 |
| 31 | 1178431 |
| 32 | 1266026 |
| 33 | 1356759 |
[0,0,6,450,2872,8522,17564,29834,45255,63814, 85511,110346,138319,169430,203679,241066,281591, 325254,372055,421994,475071,531286,590639,653130, 718759,787526,859431,934474,1012655,1093974, 1178431,1266026,1356759] |