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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 6 |
| 5 | 14 |
| 6 | 23 |
| 7 | 24 |
| 8 | 54 |
| 9 | 86 |
| 10 | 119 |
| 11 | 120 |
| 12 | 264 |
| 13 | 414 |
| 14 | 566 |
| 15 | 719 |
| 16 | 720 |
| 17 | 1560 |
| 18 | 2424 |
| 19 | 3294 |
| 20 | 4166 |
| 21 | 5039 |
| 22 | 5040 |
| 23 | 10800 |
| 24 | 16680 |
| 25 | 22584 |
| 26 | 28494 |
| 27 | 34406 |
| 28 | 40319 |
| 29 | 40320 |
| 30 | 85680 |
| 31 | 131760 |
| 32 | 177960 |
| 33 | 224184 |
| 34 | 270414 |
| 35 | 316646 |
| 36 | 362879 |
| 37 | 362880 |
| 38 | 766080 |
| 39 | 1174320 |
| 40 | 1583280 |
[1,2,5,6,14,23,24,54,86,119,120,264,414,566,719, 720,1560,2424,3294,4166,5039,5040,10800,16680, 22584,28494,34406,40319,40320,85680,131760,177960, 224184,270414,316646,362879,362880,766080,1174320, 1583280] |