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A053915 formatted as a simple table:

n a(n)
1 1
2 9
3 81
4 11881
5 19881
6 111999889
7 1199998881
8 1981191998999889
9 11181188899981881
10 889111189818189198888889
11 18891818199881191889889889 

[1,9,81,11881,19881,111999889,1199998881,
 1981191998999889,11181188899981881,
 889111189818189198888889,
 18891818199881191889889889]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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