E.g.f. A(x) satisfies A(x) = 1/( 1 - x * A(x)^2 * cosh(x * A(x)) ).

A381172

E.g.f. A(x) satisfies A(x) = 1/( 1 - x * A(x)^2 * cosh(x * A(x)) ).

Terms

    a(0) =1a(1) =1a(2) =6a(3) =75a(4) =1416a(5) =36065a(6) =1160400a(7) =45182347a(8) =2066343552a(9) =108594342369

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