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A154631 Triangle read by rows: T(m,n) = 2mn + m + n + 5.

%I A154631 #44 Sep 08 2022 08:45:40
%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,
%T A154631 57,72,87,102,117,30,47,64,81,98,115,132,149,33,52,71,90,109,128,147,
%U A154631 166,185,36,57,78,99,120,141,162,183,204,225,39,62,85,108,131,154
%N A154631 Triangle read by rows: T(m,n) = 2mn + m + n + 5.
%C A154631 All terms are in A153044. - _Vincenzo Librandi_, Aug 30 2012
%H A154631 Vincenzo Librandi, <a href="/A154631/b154631.txt">Table of n, a(n) for Rows n = 1..100, flattened</a>
%e A154631 Triangle begins:
%e A154631 9;
%e A154631 12, 17;
%e A154631 15, 22, 29;
%e A154631 18, 27, 36, 45;
%e A154631 21, 32, 43, 54, 65;
%e A154631 24, 37, 50, 63, 76, 89;
%e A154631 27, 42, 57, 72, 87, 102, 117;
%e A154631 30, 47, 64, 81, 98, 115, 132, 149;
%e A154631 33, 52, 71, 90, 109, 128, 147, 166, 185;
%e A154631 36, 57, 78, 99, 120, 141, 162, 183, 204, 225;
%t A154631 Flatten[Table[2 n m + m + n + 5, {n, 10}, {m, n}]] (* _Vincenzo Librandi_, Aug 30 2012 *)
%o A154631 (Magma) /* Triangle: */ [[2*m*n+m+n+5: m in [1..n]]: n in [1..10]]; // _Bruno Berselli_, Aug 31 2012
%Y A154631 Cf. A097069, A153044.
%K A154631 nonn,tabl,easy
%O A154631 1,1
%A A154631 _Vincenzo Librandi_, Jan 17 2009
%E A154631 Minor edits by _Jon E. Schoenfield_, Jun 23 2010