%I A025477
%S A025477 0,2,3,2,4,2,3,5,2,6,4,2,3,7,2,5,8,2,3,2,9,2,4,6,2,2,10,3,2,2,2,11,7,3,
               2,4,
%T A025477 2,5,2,2,12,2,3,2,2,2,8,3,2,2,13,2,2,2,2,2,3,2,4,6,2,14,5,2,2,2,9,2,2,
               3,
%U A025477 2,2,2,4,3,2,2,2,15,2,2,2,2,2,2,3,2,2,2,2,2,10,2,16,2,3,2,2,2,2,7,2,3,
               2
%N A025477 Exponent of n-th nontrivial prime power (A025475).
%C A025477 a(n) = A051903(A025475(n)) = A001222(A025475(n)). - Reinhard Zumkeller 
               (reinhard.zumkeller(AT)gmail.com), Mar 10 2003
%Y A025477 Sequence in context: A123725 A085058 A080771 this_sequence A080189 A076399 
               A136529
%Y A025477 Adjacent sequences: A025474 A025475 A025476 this_sequence A025478 A025479 
               A025480
%K A025477 easy,nonn
%O A025477 1,2
%A A025477 David W. Wilson (davidwwilson(AT)comcast.net)
%E A025477 Edited by N. J. A. Sloane (njas(AT)research.att.com), Jan 17 2009 at 
               the suggestion of R. J. Mathar