a(n) = n! * [x^n] A_n(x) with A_n(x) = exp(x*A_n(((x+1)^n-1)/n)) if n > 0 and A_0(x) = exp(x).

A306578

a(n) = n! * [x^n] A_n(x) with A_n(x) = exp(x*A_n(((x+1)^n-1)/n)) if n > 0 and A_0(x) = exp(x).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =22a(4) =329a(5) =9216a(6) =443227a(7) =33690574a(8) =3815631297a(9) =615764308672

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