%I A007638 M5129
%S A007638 23,24,28,31,39,44,45,46,47,50,52,56,57,60,63,67,69,70,71,79,80,85,86,
%T A007638 88,89,90,92,93,96,97,102,107,108,112,115,116,118,119,121,122,123,126,
%U A007638 128,131,134,137,138,139,143,144,145,147,148,151,153,156,157,161,162
%N A007638 3n^2 - 3n + 23 is composite.
%D A007638 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%Y A007638 Sequence in context: A022357 A165844 A062999 this_sequence A031332 A122470 
               A022393
%Y A007638 Adjacent sequences: A007635 A007636 A007637 this_sequence A007639 A007640 
               A007641
%K A007638 nonn
%O A007638 1,1
%A A007638 N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein, Robert G. 
               Wilson v (rgwv(AT)rgwv.com)