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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 42 |
| 3 | 156 |
| 4 | 420 |
| 5 | 930 |
| 6 | 1806 |
| 7 | 3192 |
| 8 | 5256 |
| 9 | 8190 |
| 10 | 12210 |
| 11 | 17556 |
| 12 | 24492 |
| 13 | 33306 |
| 14 | 44310 |
| 15 | 57840 |
| 16 | 74256 |
| 17 | 93942 |
| 18 | 117306 |
| 19 | 144780 |
| 20 | 176820 |
| 21 | 213906 |
| 22 | 256542 |
| 23 | 305256 |
| 24 | 360600 |
| 25 | 423150 |
| 26 | 493506 |
| 27 | 572292 |
| 28 | 660156 |
| 29 | 757770 |
| 30 | 865830 |
| 31 | 985056 |
| 32 | 1116192 |
| 33 | 1260006 |
| 34 | 1417290 |
| 35 | 1588860 |
| 36 | 1775556 |
[6,42,156,420,930,1806,3192,5256,8190,12210,17556, 24492,33306,44310,57840,74256,93942,117306,144780, 176820,213906,256542,305256,360600,423150,493506, 572292,660156,757770,865830,985056,1116192, 1260006,1417290,1588860,1775556] |