a(n) = ((2*n)!/(n!*2^(n-1)))*Integral_{x=1/2..1} (sqrt(1-x^2)/x)^(2*n) dx.
A095839
a(n) = ((2*n)!/(n!*2^(n-1)))*Integral_{x=1/2..1} (sqrt(1-x^2)/x)^(2*n) dx.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =51a(4) =807a(5) =17445a(6) =479565a(7) =16019955a(8) =630301455a(9) =28552506885
External references
- oeis: A095839