Search: id:A127739
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%I A127739
%S A127739 1,3,3,6,6,6,10,10,10,10,15,15,15,15,15,21,21,21,21,21,21,28,28,28,28,
%T A127739 28,28,28
%N A127739 Triangle read by rows, in which row n contains the triangular number 
               T(n) = A000217(n) repeated n times.
%C A127739 Row sums = A002411: (1, 6, 18, 40, 75,...)
%e A127739 First few rows of the triangle are:
%e A127739 1;
%e A127739 3, 3;
%e A127739 6, 6, 6;
%e A127739 10, 10, 10, 10;
%e A127739 15, 15, 15, 15, 15;
%e A127739 ...
%Y A127739 Cf. A000217, A002411.
%Y A127739 Sequence in context: A072464 A160745 A105676 this_sequence A070318 A023842 
               A165885
%Y A127739 Adjacent sequences: A127736 A127737 A127738 this_sequence A127740 A127741 
               A127742
%K A127739 nonn,tabl
%O A127739 1,2
%A A127739 Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 27 2007

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