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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 30 |
| 7 | 31 |
| 8 | 210 |
| 9 | 2310 |
| 10 | 2311 |
| 11 | 30030 |
| 12 | 510510 |
| 13 | 510511 |
| 14 | 9699690 |
| 15 | 223092870 |
| 16 | 6469693230 |
| 17 | 6469693231 |
| 18 | 6469693233 |
| 19 | 6469693261 |
| 20 | 200560490130 |
| 21 | 200560490131 |
| 22 | 7420738134810 |
| 23 | 304250263527210 |
| 24 | 304250263527211 |
| 25 | 13082761331670030 |
| 26 | 614889782588491410 |
| 27 | 32589158477190044730 |
| 28 | 1922760350154212639070 |
| 29 | 1922760350154212639071 |
[0,1,2,3,6,30,31,210,2310,2311,30030,510510, 510511,9699690,223092870,6469693230,6469693231, 6469693233,6469693261,200560490130,200560490131, 7420738134810,304250263527210,304250263527211, 13082761331670030,614889782588491410, 32589158477190044730,1922760350154212639070, 1922760350154212639071] |