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A309907 as a simple table

n a(n)
0 1
1 169
2 17689
3 1776889
4 177768889
5 17777688889
6 1777776888889
7 177777768888889
8 17777777688888889
9 1777777776888888889
10 177777777768888888889
11 17777777777688888888889
12 1777777777776888888888889
13 177777777777768888888888889
14 17777777777777688888888888889 

[1,169,17689,1776889,177768889,17777688889,
 1777776888889,177777768888889,17777777688888889,
 1777777776888888889,177777777768888888889,
 17777777777688888888889,1777777777776888888888889,
 177777777777768888888888889,
 17777777777777688888888888889]

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Last modified January 27 15:03 EST 2021. Contains 340467 sequences. (Running on oeis4.)