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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 30 |
| 5 | 210 |
| 6 | 2310 |
| 7 | 2310 |
| 8 | 2310 |
| 9 | 2310 |
| 10 | 2310 |
| 11 | 9240 |
| 12 | 9240 |
| 13 | 933240 |
| 14 | 8399160 |
| 15 | 16798320 |
| 16 | 16798320 |
| 17 | 16798320 |
| 18 | 16798320 |
| 19 | 117588240 |
| 20 | 2234176560 |
| 21 | 2234176560 |
| 22 | 373107485520 |
| 23 | 93649978865520 |
| 24 | 468249894327600 |
| 25 | 41674240595156400 |
[1,2,6,30,210,2310,2310,2310,2310,2310,9240,9240, 933240,8399160,16798320,16798320,16798320, 16798320,117588240,2234176560,2234176560, 373107485520,93649978865520,468249894327600, 41674240595156400] |