Denominators of coefficients c(n) in product expansion of (tan x)/x = Product_{k>=1} 1 + c(k)*x^(2k).

A353587

Denominators of coefficients c(n) in product expansion of (tan x)/x = Product_{k>=1} 1 + c(k)*x^(2k).

Terms

    a(0) =3a(1) =15a(2) =105a(3) =2835a(4) =66825a(5) =3648645a(6) =383107725a(7) =97692469875

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