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| n | a(n) |
|---|---|
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 3 |
| 7 | 14 |
| 8 | 42 |
| 9 | 99 |
| 10 | 200 |
| 11 | 363 |
| 12 | 609 |
| 13 | 962 |
| 14 | 1449 |
| 15 | 2100 |
| 16 | 2948 |
| 17 | 4029 |
| 18 | 5382 |
| 19 | 7049 |
| 20 | 9075 |
| 21 | 11508 |
| 22 | 14399 |
| 23 | 17802 |
| 24 | 21774 |
| 25 | 26375 |
| 26 | 31668 |
| 27 | 37719 |
| 28 | 44597 |
| 29 | 52374 |
| 30 | 61125 |
| 31 | 70928 |
| 32 | 81864 |
| 33 | 94017 |
| 34 | 107474 |
| 35 | 122325 |
| 36 | 138663 |
| 37 | 156584 |
| 38 | 176187 |
| 39 | 197574 |
| 40 | 220850 |
| 41 | 246123 |
| 42 | 273504 |
| 43 | 303107 |
[0,0,0,3,14,42,99,200,363,609,962,1449,2100,2948, 4029,5382,7049,9075,11508,14399,17802,21774,26375, 31668,37719,44597,52374,61125,70928,81864,94017, 107474,122325,138663,156584,176187,197574,220850, 246123,273504,303107] |