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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 12 |
| 3 | 57 |
| 4 | 176 |
| 5 | 425 |
| 6 | 876 |
| 7 | 1617 |
| 8 | 2752 |
| 9 | 4401 |
| 10 | 6700 |
| 11 | 9801 |
| 12 | 13872 |
| 13 | 19097 |
| 14 | 25676 |
| 15 | 33825 |
| 16 | 43776 |
| 17 | 55777 |
| 18 | 70092 |
| 19 | 87001 |
| 20 | 106800 |
| 21 | 129801 |
| 22 | 156332 |
| 23 | 186737 |
| 24 | 221376 |
| 25 | 260625 |
| 26 | 304876 |
| 27 | 354537 |
| 28 | 410032 |
| 29 | 471801 |
| 30 | 540300 |
| 31 | 616001 |
| 32 | 699392 |
| 33 | 790977 |
| 34 | 891276 |
| 35 | 1000825 |
| 36 | 1120176 |
[0,1,12,57,176,425,876,1617,2752,4401,6700,9801, 13872,19097,25676,33825,43776,55777,70092,87001, 106800,129801,156332,186737,221376,260625,304876, 354537,410032,471801,540300,616001,699392,790977, 891276,1000825,1120176] |