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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 13 |
| 2 | 39 |
| 3 | 78 |
| 4 | 130 |
| 5 | 195 |
| 6 | 273 |
| 7 | 364 |
| 8 | 468 |
| 9 | 585 |
| 10 | 715 |
| 11 | 858 |
| 12 | 1014 |
| 13 | 1183 |
| 14 | 1365 |
| 15 | 1560 |
| 16 | 1768 |
| 17 | 1989 |
| 18 | 2223 |
| 19 | 2470 |
| 20 | 2730 |
| 21 | 3003 |
| 22 | 3289 |
| 23 | 3588 |
| 24 | 3900 |
| 25 | 4225 |
| 26 | 4563 |
| 27 | 4914 |
| 28 | 5278 |
| 29 | 5655 |
| 30 | 6045 |
| 31 | 6448 |
| 32 | 6864 |
| 33 | 7293 |
| 34 | 7735 |
| 35 | 8190 |
| 36 | 8658 |
| 37 | 9139 |
| 38 | 9633 |
| 39 | 10140 |
| 40 | 10660 |
| 41 | 11193 |
| 42 | 11739 |
| 43 | 12298 |
| 44 | 12870 |
[0,13,39,78,130,195,273,364,468,585,715,858,1014, 1183,1365,1560,1768,1989,2223,2470,2730,3003,3289, 3588,3900,4225,4563,4914,5278,5655,6045,6448,6864, 7293,7735,8190,8658,9139,9633,10140,10660,11193, 11739,12298,12870] |