Expansion of e.g.f. (exp(exp(exp(exp(exp(x)-1)-1)-1)-1)-1)^2 / 2.

A351515

Expansion of e.g.f. (exp(exp(exp(exp(exp(x)-1)-1)-1)-1)-1)^2 / 2.

Terms

    a(0) =1a(1) =15a(2) =215a(3) =3325a(4) =56605a(5) =1060780a(6) =21772595a(7) =486459105a(8) =11760431325a(9) =305942552245

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