Triangle T(n, k) = coefficients of p(n,x), where p(n,x) = Sum_{j=0..n} (2*n*(n-j)!/(2*n-j)) * binomial(2*n-j, j) * (x-1)^j and p(0,x) = 1, read by rows.

A156996

Triangle T(n, k) = coefficients of p(n,x), where p(n,x) = Sum_{j=0..n} (2*n*(n-j)!/(2*n-j)) * binomial(2*n-j, j) * (x-1)^j and p(0,x) = 1, read by rows.

Terms

    a(0) =1a(1) =-1a(2) =2a(3) =0a(4) =0a(5) =2a(6) =1a(7) =0a(8) =3a(9) =2a(10) =2a(11) =8a(12) =4a(13) =8a(14) =2a(15) =13a(16) =30a(17) =40a(18) =20a(19) =15a(20) =2a(21) =80a(22) =192a(23) =210a(24) =152a(25) =60a(26) =24a(27) =2a(28) =579a(29) =1344

External references