A046149 - OEIS

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A046149 as a simple table

n	a(n)
1	0
2	77
3	679
4	6788
5	68889
6	168889
7	2677889
8	26888999
9	126888999
10	3778888999
11	13778888999
12	113778888999
13	1113778888999
14	11113778888999
15	277777788888899
16	1277777788888899
17	11277777788888899
18	111277777788888899

[0,77,679,6788,68889,168889,2677889,26888999, 126888999,3778888999,13778888999,113778888999, 1113778888999,11113778888999,277777788888899, 1277777788888899,11277777788888899, 111277777788888899]