%I #5 Mar 30 2012 18:35:26
%S 1,2,4,7,11,15,20,26,33,41,49,58,68,79,91,103,116,130,145,161,177,194,
%T 212,231,251,271,292,314,337,360,384,409,435,462,489,517,546,576,607,
%U 638,670,703,737,772,807,843,880,918,957,996,1036,1077,1119,1162,1205,1249
%N Index of 3^n within sequence of numbers of form 3^i*4^j.
%K nonn
%O 1,2
%A _David W. Wilson_
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