a(n) = Product_{2i<n} binomial(2*n-2*i-1, 2*i).
A073306
a(n) = Product_{2i<n} binomial(2*n-2*i-1, 2*i).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =10a(5) =105a(6) =1260a(7) =48510a(8) =2162160a(9) =312161850a(10) =52562109600
External references
- oeis: A073306