-8682240domain: ZAppears in sequencesTriangle T(n,k): the coefficient [x^(n-k)] of the polynomial 2^n*n!*L(n,3/2,x), where L is the generalized Laguerre Polynomial in the Abramowitz-Stegun normalization.at n=39A229789E.g.f. A(x) satisfies A(x) = 1/( 1 - x * cos(x * A(x)) )^2.at n=8A381379