OFFSET
0,8
COMMENTS
FORMULA
Column k has g.f. (sum{j=0..k-1, C(k-1, j)C(j)x^(2j)/(1-4x^2)^(j+1/2)}+0^k*(1-sqrt(1-4x^2))/(2x^2))(x/(1+x))^k
EXAMPLE
Triangle begins
1;
0,1;
1,-1,1;
0,3,-2,1;
2,-3,6,-3,1;
0,9,-10,10,-4,1;
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Apr 22 2005
STATUS
approved