%I A118286
%S A118286 2,4,8,12,14,16,20,24,26,28,32,36,38,40,44,48,50,52,56,60,62,64,68,72,
%T A118286 74,76,80,84,86,88,92,96,98,100,104,108,110,112,116,120,122,124,128,132,
%U A118286 134,136,140,144,146,148,152,156,158,160,164,168,170,172,176,180,182
%N A118286 Numbers n such that n=0 (mod 4) or n=2 (mod 12).
%C A118286 Except for n=2, conjectured n such that A118278(n)=-1 and A118282(n)=-1; 
               n such that there is an infinite set of numbers not representable 
               as the sum of three n-gonal numbers or three generalized n-gonal 
               numbers.
%t A118286 Union[4*Range[50], 2+12*Range[16]]
%Y A118286 Sequence in context: A009507 A064657 A048314 this_sequence A024911 A024906 
               A160162
%Y A118286 Adjacent sequences: A118283 A118284 A118285 this_sequence A118287 A118288 
               A118289
%K A118286 nonn
%O A118286 1,1
%A A118286 T. D. Noe (noe(AT)sspectra.com), Apr 23 2006