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

A381385

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

Terms

    a(0) =1a(1) =2a(2) =6a(3) =22a(4) =64a(5) =-398a(6) =-14768a(7) =-288458a(8) =-4695168a(9) =-62117470a(10) =-385004032a(11) =15463485398a(12) =923640068096

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