a(n) = denominator(Bernoulli(2*n)*(1/2 - n)! / sqrt(Pi)).

A335751

a(n) = denominator(Bernoulli(2*n)*(1/2 - n)! / sqrt(Pi)).

Terms

    a(0) =2a(1) =6a(2) =15a(3) =63a(4) =225a(5) =693a(6) =1289925a(7) =4455a(8) =34459425a(9) =808782975a(10) =5685805125a(11) =4106936925a(13) =72977109975

External references