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

A361193

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

Terms

    a(0) =1a(1) =-1a(2) =6a(3) =-50a(4) =648a(5) =-10952a(6) =232336a(7) =-5919664a(8) =176435328a(9) =-6024464000a(10) =231972167424

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