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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 28 |
| 3 | 120 |
| 4 | 270 |
| 5 | 496 |
| 6 | 672 |
| 7 | 924 |
| 8 | 1320 |
| 9 | 3948 |
| 10 | 7980 |
| 11 | 8128 |
| 12 | 10920 |
| 13 | 12690 |
| 14 | 15456 |
| 15 | 18018 |
| 16 | 25296 |
| 17 | 27930 |
| 18 | 29190 |
| 19 | 30240 |
| 20 | 30294 |
| 21 | 32760 |
| 22 | 35640 |
| 23 | 52080 |
| 24 | 55692 |
| 25 | 61770 |
| 26 | 69936 |
| 27 | 76986 |
| 28 | 83160 |
| 29 | 83580 |
| 30 | 86814 |
| 31 | 106950 |
| 32 | 127218 |
| 33 | 130200 |
| 34 | 131040 |
| 35 | 141360 |
| 36 | 155610 |
[6,28,120,270,496,672,924,1320,3948,7980,8128, 10920,12690,15456,18018,25296,27930,29190,30240, 30294,32760,35640,52080,55692,61770,69936,76986, 83160,83580,86814,106950,127218,130200,131040, 141360,155610] |