OFFSET
1,7
COMMENTS
First column is expansion of bracket function A001659.
FORMULA
T(n, k)=sum{j=1..n, (-1)^(n-j)C(n-1, j-1)*if(k<=j, sigma(k-1, j-k+1), 0)} [offset (1, 1)]
EXAMPLE
Rows begin
1;
1,1;
-1,1,1;
2,-2,2,1;
-5,5,-4,5,1;
13,-14,11,-7,12,1;
-33,40,-35,20,-5,27,1;
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Jul 06 2005
STATUS
approved