Search: id:A005487
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%I A005487 M3243
%S A005487 0,4,5,7,11,12,16,23,26,31,33,37,38,44,49,56,73,78,80,85,95,99,106,124,
%T A005487 128,131,136,143,169,188,197,203,220,221,226,227,238,247,259,269,276,
%U A005487 284,287,302,308,310,313,319,337,385,392,397,422,434,455,466,470
%N A005487 Contains no 3-term arithmetic progression.
%D A005487 R. K. Guy, Unsolved Problems in Number Theory, E10.
%D A005487 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%Y A005487 Equals A033158(n+1)-1.
%Y A005487 Sequence in context: A032686 A074300 A047375 this_sequence A084087 A080327 
               A062709
%Y A005487 Adjacent sequences: A005484 A005485 A005486 this_sequence A005488 A005489 
               A005490
%K A005487 nonn,nice
%O A005487 0,2
%A A005487 N. J. A. Sloane (njas(AT)research.att.com).

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