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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 10 |
| 4 | 16 |
| 5 | 24 |
| 6 | 38 |
| 7 | 58 |
| 8 | 86 |
| 9 | 122 |
| 10 | 172 |
| 11 | 236 |
| 12 | 328 |
| 13 | 448 |
| 14 | 606 |
| 15 | 802 |
| 16 | 1060 |
| 17 | 1380 |
| 18 | 1806 |
| 19 | 2338 |
| 20 | 3018 |
| 21 | 3846 |
| 22 | 4900 |
| 23 | 6180 |
| 24 | 7816 |
| 25 | 9808 |
| 26 | 12294 |
| 27 | 15274 |
| 28 | 18982 |
| 29 | 23418 |
| 30 | 28938 |
| 31 | 35542 |
| 32 | 43638 |
| 33 | 53226 |
| 34 | 64942 |
| 35 | 78786 |
| 36 | 95686 |
| 37 | 115642 |
| 38 | 139754 |
| 39 | 168022 |
| 40 | 202086 |
| 41 | 241946 |
[1,3,6,10,16,24,38,58,86,122,172,236,328,448,606, 802,1060,1380,1806,2338,3018,3846,4900,6180,7816, 9808,12294,15274,18982,23418,28938,35542,43638, 53226,64942,78786,95686,115642,139754,168022, 202086,241946] |