E.g.f. C(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.
A325291
E.g.f. C(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) =2a(2) =56a(3) =8336a(4) =3985792a(5) =4679517952
External references
- oeis: A325291