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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 20 |
| 3 | 120 |
| 4 | 140 |
| 5 | 630 |
| 6 | 231 |
| 7 | 2016 |
| 8 | 2184 |
| 9 | 4950 |
| 10 | 2860 |
| 11 | 10296 |
| 12 | 8364 |
| 13 | 19110 |
| 14 | 9520 |
| 15 | 32640 |
| 16 | 15504 |
| 17 | 52326 |
| 18 | 34362 |
| 19 | 79800 |
| 20 | 35420 |
| 21 | 116886 |
| 22 | 70686 |
| 23 | 165600 |
| 24 | 28536 |
| 25 | 228150 |
| 26 | 95004 |
| 27 | 306936 |
| 28 | 170940 |
| 29 | 404550 |
| 30 | 117030 |
| 31 | 523776 |
| 32 | 280608 |
| 33 | 667590 |
| 34 | 264180 |
| 35 | 839160 |
| 36 | 130264 |
[6,20,120,140,630,231,2016,2184,4950,2860,10296, 8364,19110,9520,32640,15504,52326,34362,79800, 35420,116886,70686,165600,28536,228150,95004, 306936,170940,404550,117030,523776,280608,667590, 264180,839160,130264] |