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A025683 Exponent of 9 (value of i) in n-th number of form 9^i*10^j. 1

%I

%S 0,1,0,2,1,0,3,2,1,0,4,3,2,1,0,5,4,3,2,1,0,6,5,4,3,2,1,0,7,6,5,4,3,2,

%T 1,0,8,7,6,5,4,3,2,1,0,9,8,7,6,5,4,3,2,1,0,10,9,8,7,6,5,4,3,2,1,0,11,

%U 10,9,8,7,6,5,4,3,2,1,0,12,11,10,9,8,7,6,5,4,3,2,1,0,13,12,11,10,9,8,7,6,5,4,3

%N Exponent of 9 (value of i) in n-th number of form 9^i*10^j.

%Y Differs from A025581 at a(253).

%K nonn

%O 1,4

%A _David W. Wilson_

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Last modified September 23 12:30 EDT 2020. Contains 337310 sequences. (Running on oeis4.)