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A155704 Triangle read by rows where T(m,n)=2*m*n + m + n + 10.

%I A155704 #11 Sep 08 2022 08:45:41
%S A155704 14,17,22,20,27,34,23,32,41,50,26,37,48,59,70,29,42,55,68,81,94,32,47,
%T A155704 62,77,92,107,122,35,52,69,86,103,120,137,154,38,57,76,95,114,133,152,
%U A155704 171,190,41,62,83,104,125,146,167,188,209,230,44,67,90,113,136,159,182
%N A155704 Triangle read by rows where T(m,n)=2*m*n + m + n + 10.
%C A155704 The numbers 2*T(m,n)-19 = (2*m+1)*(2*n+1) are not prime.
%C A155704 First column: A016789, second column: A016873, third column: A017053, fourth column: A017221. - _Vincenzo Librandi_, Nov 20 2012
%H A155704 Vincenzo Librandi, <a href="/A155704/b155704.txt">Rows n = 1..100, flattened</a>
%e A155704 Triangle begins:
%e A155704 14;
%e A155704 17, 22;
%e A155704 20, 27, 34;
%e A155704 23, 32, 41, 50;
%e A155704 26, 37, 48, 59, 70;
%e A155704 29, 42, 55, 68, 81, 94;
%e A155704 32, 47, 62, 77, 92, 107, 122;
%e A155704 35, 52, 69, 86, 103, 120, 137, 154;
%e A155704 38, 57, 76, 95, 114, 133, 152, 171, 190;
%e A155704 41, 62, 83, 104, 125, 146, 167, 188, 209, 230;
%t A155704 t[n_,k_]:=2 n*k + n + k +  10; Table[t[n, k], {n, 15}, {k, n}]//Flatten (* _Vincenzo Librandi_, Nov 20 2012 *)
%o A155704 (Magma) [2*n*k + n + k + 10: k in [1..n], n in [1..11]]; // _Vincenzo Librandi_, Nov 20 2012
%Y A155704 Cf. A153041, A016789, A016873, A017053, A017221.
%K A155704 nonn,tabl,easy
%O A155704 1,1
%A A155704 _Vincenzo Librandi_, Jan 25 2009