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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 42 |
| 3 | 105 |
| 4 | 232 |
| 5 | 475 |
| 6 | 904 |
| 7 | 1632 |
| 8 | 2806 |
| 9 | 4642 |
| 10 | 7414 |
| 11 | 11500 |
| 12 | 17368 |
| 13 | 25636 |
| 14 | 37054 |
| 15 | 52579 |
| 16 | 73354 |
| 17 | 100799 |
| 18 | 136586 |
| 19 | 182749 |
| 20 | 241654 |
| 21 | 316129 |
| 22 | 409430 |
| 23 | 525392 |
| 24 | 668390 |
| 25 | 843514 |
| 26 | 1056524 |
| 27 | 1314050 |
| 28 | 1623542 |
| 29 | 1993496 |
| 30 | 2433398 |
| 31 | 2953979 |
| 32 | 3567152 |
| 33 | 4286297 |
| 34 | 5126192 |
[15,42,105,232,475,904,1632,2806,4642,7414,11500, 17368,25636,37054,52579,73354,100799,136586, 182749,241654,316129,409430,525392,668390,843514, 1056524,1314050,1623542,1993496,2433398,2953979, 3567152,4286297,5126192] |