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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 36 |
| 3 | 294 |
| 4 | 504 |
| 5 | 1830 |
| 6 | 2142 |
| 7 | 3042 |
| 8 | 4746 |
| 9 | 7380 |
| 10 | 7782 |
| 11 | 8100 |
| 12 | 15642 |
| 13 | 22734 |
| 14 | 38610 |
| 15 | 47736 |
| 16 | 77166 |
| 17 | 103320 |
| 18 | 107114 |
| 19 | 112110 |
| 20 | 134070 |
| 21 | 153270 |
| 22 | 189434 |
| 23 | 189954 |
| 24 | 234024 |
| 25 | 239850 |
| 26 | 243438 |
| 27 | 275834 |
| 28 | 287790 |
| 29 | 296646 |
| 30 | 305910 |
| 31 | 314262 |
| 32 | 345042 |
| 33 | 361350 |
| 34 | 410424 |
[1,36,294,504,1830,2142,3042,4746,7380,7782,8100, 15642,22734,38610,47736,77166,103320,107114, 112110,134070,153270,189434,189954,234024,239850, 243438,275834,287790,296646,305910,314262,345042, 361350,410424] |