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%I #7 May 20 2013 08:37:35
%S 1,5,1,14,5,1,30,14,5,1,55,30,14,5,1,91,55,30,14,5,1,140,91,55,30,14,
%T 5,1,204,140,91,55,30,14,5,1,285,204,140,91,55,30,14,5,1,385,285,204,
%U 140,91,55,30,14,5,1,506,385,285,204,140,91,55,30,14,5,1,650,506,385,285
%N Triangle T(n,k) = A000330(n-k), n>=1, 0<=k<n, read by rows.
%C Repeatedly writing the square pyramidal numbers (A000330) backwards.
%F T(n,k) = (n-k)(n-k+1)(2n-2k+1)/6 = A000330(A004736(n)). - _Ralf Stephan_, Apr 05 2009
%e First few rows of the triangle are:
%e 1;
%e 5, 1;
%e 14, 5, 1;
%e 30, 14, 5, 1;
%e 55, 30, 14, 5, 1;
%e 91, 55, 30, 14, 5, 1;
%e ...
%Y Row sums are in A002415. Antidiagonals are in A000332.
%K nonn,easy,tabl
%O 1,2
%A _Gary W. Adamson_, Mar 26 2005
%E Edited by _Ralf Stephan_, Apr 05 2009
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