|
%I #13 Aug 27 2023 10:18:31
%S 1,3,1,7,1,1,11,3,1,1,19,3,1,1,1,23,7,3,1,1,1,35,7,3,1,1,1,1,43,11,3,
%T 3,1,1,1,1,55,11,7,3,1,1,1,1,1,63,19,7,3,3,1,1,1,1,1,83,19,7,3,3,1,1,
%U 1,1,1,1,91,23,11,7,3,3,1,1,1,1,1,1,115,23,11,7,3,3,1,1,1,1,1,1,1
%N Triangle read by rows, A000012 * A143316, 1 <= k <= n.
%C Sum of n-th row is n^2.
%C Duplicate of A242114.
%F Triangle read by rows, A000012 * A143316, 1 <= k <= n, where the operation A000012 * A143316 takes partial sums of A143316 terms by columns.
%e First few rows of the triangle:
%e 1;
%e 3, 1;
%e 7, 1, 1;
%e 11, 3, 1, 1;
%e 19, 3, 1, 1, 1;
%e 23, 7, 3, 1, 1, 1;
%e 35, 7, 3, 1, 1, 1, 1;
%e ...
%Y Cf. A143316, A242114.
%K dead
%O 1,2
%A _Gary W. Adamson_, Aug 17 2008
%E a(28) = 1 inserted by _Georg Fischer_, Aug 18 2023
|
