Search: id:A031355
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%I A031355
%S A031355 0,3,3,3,3,2,2,3,2,1,1,3,3,3,3,2,2,3,2,1,3,3,2,3,2,2,2,3,2,1,3,2,2,
%T A031355 2,3,2,2,2,3,1,3,3,2,3,2,2,2,2,2,1,3,2,3,2,3,2,3,2,2,1,2,2,2,2,2,2,
%U A031355 2,2,2,1,2,2,2,2,3,2,2,3,3,1,3,3,2,2,2,2,3,2,3,1,2,2,3,2,2,2,3,3,2
%N A031355 9-multiplicative persistence: number of iterations of "multiply 9th powers 
               of digits" needed to reach 0 or 1.
%H A031355 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 A031355 Sequence in context: A138070 A081334 A106694 this_sequence A097675 A141605 
               A073139
%Y A031355 Adjacent sequences: A031352 A031353 A031354 this_sequence A031356 A031357 
               A031358
%K A031355 nonn
%O A031355 0,2
%A A031355 Eric Weisstein (eric(AT)weisstein.com)

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