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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 11 |
| 5 | 59 |
| 6 | 59 |
| 7 | 419 |
| 8 | 839 |
| 9 | 2519 |
| 10 | 2519 |
| 11 | 27719 |
| 12 | 27719 |
| 13 | 360359 |
| 14 | 360359 |
| 15 | 360359 |
| 16 | 720719 |
| 17 | 12252239 |
| 18 | 12252239 |
| 19 | 232792559 |
| 20 | 232792559 |
| 21 | 232792559 |
| 22 | 232792559 |
| 23 | 5354228879 |
| 24 | 5354228879 |
| 25 | 26771144399 |
| 26 | 26771144399 |
| 27 | 80313433199 |
| 28 | 80313433199 |
| 29 | 2329089562799 |
| 30 | 2329089562799 |
[2,5,11,11,59,59,419,839,2519,2519,27719,27719, 360359,360359,360359,720719,12252239,12252239, 232792559,232792559,232792559,232792559, 5354228879,5354228879,26771144399,26771144399, 80313433199,80313433199,2329089562799, 2329089562799] |