G.f. A(x,y) satisfies: A( x - y*G(x,y), y) = x + (1-y)*G(x,y) such that G(x,y) = Integral A(x,y) dx, where the coefficients T(n,k) of x^n*y^k form a triangle read by rows n>=1, for k=0..n-1.

A277410

G.f. A(x,y) satisfies: A( x - y*G(x,y), y) = x + (1-y)*G(x,y) such that G(x,y) = Integral A(x,y) dx, where the coefficients T(n,k) of x^n*y^k form a triangle read by rows n>=1, for k=0..n-1.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =3a(5) =0a(6) =1a(7) =13a(8) =15a(9) =0a(10) =1a(11) =38a(12) =165a(13) =105a(14) =0a(15) =1a(16) =94a(17) =1033a(18) =2310a(19) =945a(20) =0a(21) =1a(22) =213a(23) =4953a(24) =26229a(25) =36330a(26) =10395a(27) =0a(28) =1a(29) =459

External references