%I A031354
%S A031354 0,3,3,3,2,4,2,3,2,1,1,3,3,3,2,4,2,3,2,1,3,3,4,3,2,3,2,3,2,1,3,4,2,
%T A031354 3,2,2,3,2,3,1,3,3,3,3,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,1,4,3,2,2,2,2,
%U A031354 3,2,2,1,2,2,3,2,2,3,2,2,2,1,3,3,2,2,2,2,2,2,2,1,2,2,3,2,2,2,2,2,2
%N A031354 8-multiplicative persistence: number of iterations of "multiply 8th powers 
               of digits" needed to reach 0 or 1.
%H A031354 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               MultiplicativePersistence.html">Link to a section of The World of 
               Mathematics.</a>
%Y A031354 Sequence in context: A087497 A085767 A082127 this_sequence A033700 A122916 
               A132973
%Y A031354 Adjacent sequences: A031351 A031352 A031353 this_sequence A031355 A031356 
               A031357
%K A031354 nonn
%O A031354 0,2
%A A031354 Eric Weisstein (eric(AT)weisstein.com)