%I A154631
%S A154631 9,12,17,15,22,29,18,27,36,45,21,32,43,54,65,24,37,50,63,76,89,27,42,57,
%T A154631 72,87,102,117,30,47,64,81,98,115,132,149,33,52,71,90,109,128,147,166,
%U A154631 185,36,57,78,99,120,141,162,183,204,225
%N A154631 Triangle read by rows where T(m.n)=2mn+m+n+5
%e A154631 Tiangle begins: 9; 12, 17; 15, 22, 29; 18, 27, 36, 45; 21, 32, 43 54, 
               65; 24, 37, 50, 63, 76, 89; 27, 42, 57, 72, 87, 102, 117; 30, 47, 
               64, 81, 98, 115, 132, 149; 33, 52, 71, 90, 109, 128, 147, 166, 185; 
               36, 57, 78, 99, 120, 141, 162, 183, 204, 225;
%Y A154631 Cf. A009706, A153044
%Y A154631 Sequence in context: A084375 A076674 A027571 this_sequence A141552 A162822 
               A087269
%Y A154631 Adjacent sequences: A154628 A154629 A154630 this_sequence A154632 A154633 
               A154634
%K A154631 nonn,tabl
%O A154631 1,1
%A A154631 Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 17 2009