Search: id:A138886
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%I A138886
%S A138886 0,1,1,1,1,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,
%T A138886 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,
%U A138886 0,0,0,0,0,0,0,0,0
%N A138886 n-th run has length n-th nonprime number, with digits 0 and 1 only, starting 
               with 0.
%e A138886 .n ..... Run ................... Length
%e A138886 .1 ..... 0 ..................... 1
%e A138886 .2 ..... 1,1,1,1 ............... 4
%e A138886 .3 ..... 0,0,0,0,0,0 ........... 6
%e A138886 .4 ..... 1,1,1,1,1,1,1,1 ....... 8
%e A138886 .5 ..... 0,0,0,0,0,0,0,0,0 ..... 9
%Y A138886 Nonprime numbers: A018252. Cf. A057211, A138149, A138150, A138709, A138710, 
               A138711, A138712, A138885.
%Y A138886 Sequence in context: A115517 A022930 A068344 this_sequence A099859 A102460 
               A080908
%Y A138886 Adjacent sequences: A138883 A138884 A138885 this_sequence A138887 A138888 
               A138889
%K A138886 easy,nonn
%O A138886 1,1
%A A138886 Omar E. Pol (info(AT)polprimos.com), Apr 06 2008

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