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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 474 |
| 7 | 3780 |
| 8 | 12946 |
| 9 | 32869 |
| 10 | 68308 |
| 11 | 117760 |
| 12 | 187311 |
| 13 | 275272 |
| 14 | 379035 |
| 15 | 500919 |
| 16 | 639115 |
| 17 | 793623 |
| 18 | 964443 |
| 19 | 1151575 |
| 20 | 1355019 |
| 21 | 1574775 |
| 22 | 1810843 |
| 23 | 2063223 |
| 24 | 2331915 |
| 25 | 2616919 |
| 26 | 2918235 |
| 27 | 3235863 |
| 28 | 3569803 |
| 29 | 3920055 |
| 30 | 4286619 |
| 31 | 4669495 |
| 32 | 5068683 |
| 33 | 5484183 |
[0,0,0,0,0,474,3780,12946,32869,68308,117760, 187311,275272,379035,500919,639115,793623,964443, 1151575,1355019,1574775,1810843,2063223,2331915, 2616919,2918235,3235863,3569803,3920055,4286619, 4669495,5068683,5484183] |