A158859 - OEIS

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A158859 as a simple table

n	a(n)
0	1
1	333
2	55555
3	7777777
4	999999999
5	11111111111
6	3333333333333
7	555555555555555
8	77777777777777777
9	9999999999999999999
10	111111111111111111111
11	33333333333333333333333

[1,333,55555,7777777,999999999,11111111111, 3333333333333,555555555555555,77777777777777777, 9999999999999999999,111111111111111111111, 33333333333333333333333]