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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 15 |
| 3 | 36 |
| 4 | 65 |
| 5 | 106 |
| 6 | 159 |
| 7 | 248 |
| 8 | 365 |
| 9 | 494 |
| 10 | 635 |
| 11 | 812 |
| 12 | 1017 |
| 13 | 1250 |
| 14 | 1503 |
| 15 | 1856 |
| 16 | 2277 |
| 17 | 2694 |
| 18 | 3091 |
| 19 | 3508 |
| 20 | 3921 |
| 21 | 4354 |
| 22 | 4815 |
| 23 | 5368 |
| 24 | 5981 |
| 25 | 6622 |
| 26 | 7275 |
| 27 | 8028 |
| 28 | 8841 |
| 29 | 9730 |
| 30 | 10671 |
| 31 | 11936 |
| 32 | 13525 |
| 33 | 15030 |
| 34 | 16347 |
| 35 | 17676 |
| 36 | 18969 |
| 37 | 20234 |
| 38 | 21543 |
| 39 | 22936 |
| 40 | 24309 |
| 41 | 25726 |
| 42 | 27179 |
| 43 | 28692 |
[1,6,15,36,65,106,159,248,365,494,635,812,1017, 1250,1503,1856,2277,2694,3091,3508,3921,4354,4815, 5368,5981,6622,7275,8028,8841,9730,10671,11936, 13525,15030,16347,17676,18969,20234,21543,22936, 24309,25726,27179,28692] |