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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 16 |
| 3 | 38 |
| 4 | 69 |
| 5 | 120 |
| 6 | 190 |
| 7 | 276 |
| 8 | 387 |
| 9 | 542 |
| 10 | 714 |
| 11 | 924 |
| 12 | 1161 |
| 13 | 1456 |
| 14 | 1794 |
| 15 | 2174 |
| 16 | 2597 |
| 17 | 3084 |
| 18 | 3620 |
| 19 | 4230 |
| 20 | 4891 |
| 21 | 5610 |
| 22 | 6418 |
| 23 | 7292 |
| 24 | 8213 |
| 25 | 9248 |
| 26 | 10366 |
| 27 | 11566 |
| 28 | 12827 |
| 29 | 14200 |
| 30 | 15664 |
| 31 | 17228 |
| 32 | 18865 |
| 33 | 20690 |
| 34 | 22546 |
| 35 | 24498 |
| 36 | 26625 |
| 37 | 28826 |
[1,6,16,38,69,120,190,276,387,542,714,924,1161, 1456,1794,2174,2597,3084,3620,4230,4891,5610,6418, 7292,8213,9248,10366,11566,12827,14200,15664, 17228,18865,20690,22546,24498,26625,28826] |