Array T(n, k) = (-1)^(n+k)*(n+k-2)!*(2*n+2*k-2)!/(n!*k!*(2*n-1)!*(2*k-1)!), with T(0, 0) = 1, T(0, 1) = T(1, 0) = -1, read by antidiagonals.

A132339

Array T(n, k) = (-1)^(n+k)*(n+k-2)!*(2*n+2*k-2)!/(n!*k!*(2*n-1)!*(2*k-1)!), with T(0, 0) = 1, T(0, 1) = T(1, 0) = -1, read by antidiagonals.

Terms

    a(0) =1a(1) =-1a(2) =-1a(3) =0a(4) =2a(5) =0a(6) =0a(7) =-2a(8) =-2a(9) =0a(10) =0a(11) =2a(12) =10a(13) =2a(14) =0a(15) =0a(16) =-2a(17) =-28a(18) =-28a(19) =-2a(20) =0a(21) =0a(22) =2a(23) =60a(24) =168a(25) =60a(26) =2a(27) =0a(28) =0a(29) =-2

External references