%I A154614
%S A154614 2,4,7,6,10,14,8,13,18,23,10,16,22,28,34,12,19,26,33,40,47,14,22,30,38,
%T A154614 46,54,62,16,25,34,43,52,61,70,79,18,28,38,48,58,68,7,88,98,20,31,42,53,
%U A154614 64,75,86,97,108,119
%N A154614 Triangle read by rows where T(m,n)=mn+m+n-1
%C A154614 Numbers n such that n+2 is not prime. If m=n then a(n)=m^2+2m-1=(2, 7, 
               14, 23, 34, 47,...)and a(n)+2 is a square
%e A154614 Triangle begins: 2; 4, 7; 6, 10, 14; 8, 13, 18, 23; 10, 16, 22, 28, 34; 
               12, 19, 26, 33, 40, 47; 14, 22, 30, 38, 46, 54, 62; 16, 25, 34, 43, 
               52, 61, 70, 79; 18, 28, 38, 48, 58, 68, 78, 88, 98; 20, 31, 42, 53, 
               64, 75, 86, 97, 108, 119;
%Y A154614 Cf. A040976
%Y A154614 Sequence in context: A035311 A129980 A126786 this_sequence A161211 A161368 
               A023978
%Y A154614 Adjacent sequences: A154611 A154612 A154613 this_sequence A154615 A154616 
               A154617
%K A154614 nonn,tabf,tabl
%O A154614 1,1
%A A154614 Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 16 2009