15335425

Appears in sequences

• E.g.f. C(x) satisfies: C(x) = cosh( Integral C(x)^4 dx ).at n=5A281428
• E.g.f.: C(x) + S(x) = exp( Integral C(x)^4 dx ) where C(x) and S(x) is described by A281428 and A281427, respectively.at n=10A281429