51583084domain: NAppears in sequences(n-1)st elementary symmetric function of binomial(n,0), binomial(n,1), ..., binomial(n,n).at n=6A025135Triangle read by rows. Row n gives the coefficients of Product_{k=0..n-1} (x - binomial(n-1,k)) expanded in decreasing powers of x, with row 0 = {1}.at n=42A355635