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| n | a(n) |
|---|---|
| 1 | 23 |
| 2 | 2337 |
| 3 | 233747 |
| 4 | 23374753 |
| 5 | 2337475367 |
| 6 | 233747536779 |
| 7 | 23374753677983 |
| 8 | 2337475367798389 |
| 9 | 233747536779838997 |
| 10 | 233747536779838997113 |
| 11 | 233747536779838997113127 |
| 12 | 233747536779838997113127131 |
[23,2337,233747,23374753,2337475367,233747536779, 23374753677983,2337475367798389, 233747536779838997,233747536779838997113, 233747536779838997113127, 233747536779838997113127131] |