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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 7 |
| 3 | 36 |
| 4 | 117 |
| 5 | 292 |
| 6 | 612 |
| 7 | 1143 |
| 8 | 1963 |
| 9 | 3159 |
| 10 | 4833 |
| 11 | 7099 |
| 12 | 10080 |
| 13 | 13914 |
| 14 | 18751 |
| 15 | 24750 |
| 16 | 32085 |
| 17 | 40942 |
| 18 | 51516 |
| 19 | 64017 |
| 20 | 78667 |
| 21 | 95697 |
| 22 | 115353 |
| 23 | 137893 |
| 24 | 163584 |
| 25 | 192708 |
| 26 | 225559 |
| 27 | 262440 |
| 28 | 303669 |
| 29 | 349576 |
| 30 | 400500 |
| 31 | 456795 |
| 32 | 518827 |
| 33 | 586971 |
| 34 | 661617 |
[0,0,7,36,117,292,612,1143,1963,3159,4833,7099, 10080,13914,18751,24750,32085,40942,51516,64017, 78667,95697,115353,137893,163584,192708,225559, 262440,303669,349576,400500,456795,518827,586971, 661617] |