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| n | a(n) |
|---|---|
| 1 | 12345678910111 |
| 2 | 2 |
| 3 | 13 |
| 4 | 14151617 |
| 5 | 181 |
| 6 | 920212223242526272829303132333435363738394041424344454647484950515253 |
| 7 | 5 |
[12345678910111,2,13,14151617,181, 92021222324252627282930313233343536373839404142434\ 4454647484950515253,5] |