E.g.f. C(x)^2 = cosh( Integral C(x)^3 dx )^2 where C(x) is described by A281181.

A281183

E.g.f. C(x)^2 = cosh( Integral C(x)^3 dx )^2 where C(x) is described by A281181.

Terms

    a(0) =1a(1) =2a(2) =32a(3) =1376a(4) =114176a(5) =15519488a(6) =3132551168a(7) =879422726144

External references