Triangle of coefficients T(n,k) of x^n*y^k in g.f. A(x,y) where A(x,y) = A(x^3 + 3*x*y*A(x,y)^3, y) / A(x^2 + 2*x*y*A(x,y)^2, y), read by rows.
A385910
Triangle of coefficients T(n,k) of x^n*y^k in g.f. A(x,y) where A(x,y) = A(x^3 + 3*x*y*A(x,y)^3, y) / A(x^2 + 2*x*y*A(x,y)^2, y), read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =-1a(5) =3a(6) =0a(7) =1a(8) =-8a(9) =12a(10) =0a(11) =1a(12) =7a(13) =-49a(14) =55a(15) =0a(16) =0a(17) =9a(18) =56a(19) =-296a(20) =273a(21) =0a(22) =-2a(23) =9a(24) =14a(25) =498a(26) =-1815a(27) =1428a(28) =0a(29) =0
External references
- oeis: A385910