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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 13 |
| 2 | 68 |
| 3 | 189 |
| 4 | 400 |
| 5 | 725 |
| 6 | 1188 |
| 7 | 1813 |
| 8 | 2624 |
| 9 | 3645 |
| 10 | 4900 |
| 11 | 6413 |
| 12 | 8208 |
| 13 | 10309 |
| 14 | 12740 |
| 15 | 15525 |
| 16 | 18688 |
| 17 | 22253 |
| 18 | 26244 |
| 19 | 30685 |
| 20 | 35600 |
| 21 | 41013 |
| 22 | 46948 |
| 23 | 53429 |
| 24 | 60480 |
| 25 | 68125 |
| 26 | 76388 |
| 27 | 85293 |
| 28 | 94864 |
| 29 | 105125 |
| 30 | 116100 |
| 31 | 127813 |
| 32 | 140288 |
| 33 | 153549 |
| 34 | 167620 |
| 35 | 182525 |
| 36 | 198288 |
| 37 | 214933 |
[0,13,68,189,400,725,1188,1813,2624,3645,4900, 6413,8208,10309,12740,15525,18688,22253,26244, 30685,35600,41013,46948,53429,60480,68125,76388, 85293,94864,105125,116100,127813,140288,153549, 167620,182525,198288,214933] |