Triangular sequence of coefficients from a polynomial recursion: p(x,n)=-2 (-(n - 1) + x)*p(x, n - 1) + (-(n + 1) + (n + 2)* x - x^2)p(x, n - 2).

A137663

Triangular sequence of coefficients from a polynomial recursion: p(x,n)=-2 (-(n - 1) + x)*p(x, n - 1) + (-(n + 1) + (n + 2)* x - x^2)p(x, n - 2).

Terms

    a(0) =1a(1) =0a(2) =-2a(3) =-3a(4) =0a(5) =3a(6) =-12a(7) =14a(8) =2a(9) =-4a(10) =-57a(11) =90a(12) =-28a(13) =-10a(14) =5a(15) =-384a(16) =666a(17) =-306a(18) =0a(19) =30a(20) =-6a(21) =-3441a(22) =6342a(23) =-3419a(24) =368a(25) =213a(26) =-70a(27) =7a(28) =-38220a(29) =74202

External references