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

A381175

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

Terms

    a(0) =1a(1) =1a(2) =6a(3) =69a(4) =1224a(5) =29465a(6) =898320a(7) =33187133a(8) =1441200768a(9) =71956238769

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