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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 7 |
| 8 | 8 |
| 9 | 18 |
| 10 | 30 |
| 11 | 55 |
| 12 | 84 |
| 13 | 143 |
| 14 | 210 |
| 15 | 315 |
| 16 | 448 |
| 17 | 646 |
| 18 | 882 |
| 19 | 1235 |
| 20 | 1640 |
| 21 | 2205 |
| 22 | 2882 |
| 23 | 3772 |
| 24 | 4824 |
| 25 | 6200 |
| 26 | 7800 |
| 27 | 9828 |
| 28 | 12208 |
| 29 | 15138 |
| 30 | 18540 |
| 31 | 22723 |
| 32 | 27520 |
| 33 | 33297 |
| 34 | 39950 |
| 35 | 47845 |
| 36 | 56844 |
| 37 | 67488 |
| 38 | 79534 |
| 39 | 93600 |
| 40 | 109520 |
| 41 | 127920 |
| 42 | 148638 |
| 43 | 172473 |
| 44 | 199144 |
| 45 | 229590 |
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