2399141888

Appears in sequences

• Denominator of 4*(Integral_{x=0..1} (1-x^2)^((2n-1)/2) dx)/Pi.at n=13A086891
• a(n) = (9*n)!/((3*n)!*(2*n)!) * (n/2)!/(9*n/2)!.at n=3A347858