A110780 - OEIS

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A110780 as a simple table

n	a(n)
1	11
2	99999
3	111111111
4	9999999999
5	11111111111111111111111111111111111111
6	99999999999999999999999999999999999999999999999

[11,99999,111111111,9999999999, 11111111111111111111111111111111111111, 99999999999999999999999999999999999999999999999]