E.g.f. C(x) + S(x), where C(x*y) + S(x*y) = exp( Integral Integral C(x*y) dx dy ) such that C(x)^2 - S(x)^2 = 1.

A325290

E.g.f. C(x) + S(x), where C(x*y) + S(x*y) = exp( Integral Integral C(x*y) dx dy ) such that C(x)^2 - S(x)^2 = 1.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =8a(4) =56a(5) =576a(6) =8336a(7) =160768a(8) =3985792a(9) =123535360a(10) =4679517952a(11) =212713734144

External references