E.g.f. C(x) satisfies: C(x) = cosh( Integral C(x)^4 dx ).

A281428

E.g.f. C(x) satisfies: C(x) = cosh( Integral C(x)^4 dx ).

Terms

    a(0) =1a(1) =1a(2) =17a(3) =865a(4) =88865a(5) =15335425a(6) =3993275825

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