G.f.: ( (1 - sqrt(1-32*x)) / (16*x) )^(1/4).

A228411

G.f.: ( (1 - sqrt(1-32*x)) / (16*x) )^(1/4).

Terms

    a(0) =1a(1) =2a(2) =26a(3) =476a(4) =10150a(5) =236060a(6) =5807076a(7) =148581048a(8) =3913759878a(9) =105424703020

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