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Exponent of 5 (value of i) in n-th number of form 5^i*7^j.
0

%I #5 Mar 30 2012 18:35:26

%S 0,1,0,2,1,0,3,2,1,0,4,3,2,1,0,5,4,3,2,1,6,0,5,4,3,2,7,1,6,0,5,4,3,8,

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

%U 2,7,1,12,6,0,11,5,10,4,9,3,8,2,13,7,1,12,6,0,11,5,10,4,9,3,14,8,2,13,7,1,12,6

%N Exponent of 5 (value of i) in n-th number of form 5^i*7^j.

%K nonn

%O 1,4

%A _David W. Wilson_