Integral factorial ratio sequence: a(n) = (2*n)!*(8*n)!/(n!*(4*n)!*(5*n)!).

A182400

Integral factorial ratio sequence: a(n) = (2*n)!*(8*n)!/(n!*(4*n)!*(5*n)!).

Terms

    a(0) =1a(1) =28a(2) =1716a(3) =118864a(4) =8684340a(5) =653817528a(6) =50181947376

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