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A055617 as a simple table

n a(n)
1 990100
2 999900010000
3 999999000001000000
4 999999990000000100000000
5 999999999900000000010000000000
6 999999999999000000000001000000000000
7 999999999999990000000000000100000000000000 

[990100,999900010000,999999000001000000,
 999999990000000100000000,
 999999999900000000010000000000,
 999999999999000000000001000000000000,
 999999999999990000000000000100000000000000]

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Last modified September 17 05:28 EDT 2024. Contains 375985 sequences. (Running on oeis4.)