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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 15 |
| 3 | 36 |
| 4 | 65 |
| 5 | 102 |
| 6 | 151 |
| 7 | 216 |
| 8 | 317 |
| 9 | 442 |
| 10 | 571 |
| 11 | 756 |
| 12 | 953 |
| 13 | 1158 |
| 14 | 1375 |
| 15 | 1668 |
| 16 | 2005 |
| 17 | 2398 |
| 18 | 2783 |
| 19 | 3308 |
| 20 | 3837 |
| 21 | 4374 |
| 22 | 4923 |
| 23 | 5528 |
| 24 | 6269 |
| 25 | 6918 |
| 26 | 7763 |
| 27 | 8648 |
| 28 | 9601 |
| 29 | 10518 |
| 30 | 11355 |
| 31 | 12696 |
| 32 | 13845 |
| 33 | 15182 |
| 34 | 16575 |
| 35 | 17928 |
| 36 | 19561 |
| 37 | 21098 |
| 38 | 22815 |
| 39 | 24508 |
| 40 | 26537 |
| 41 | 28374 |
| 42 | 30415 |
| 43 | 32632 |
[1,6,15,36,65,102,151,216,317,442,571,756,953, 1158,1375,1668,2005,2398,2783,3308,3837,4374,4923, 5528,6269,6918,7763,8648,9601,10518,11355,12696, 13845,15182,16575,17928,19561,21098,22815,24508, 26537,28374,30415,32632] |