a(n) = (6*n)!/((3*n)!*(2*n)!) * (3*n/2)!/(5*n/2)!.
A347857
a(n) = (6*n)!/((3*n)!*(2*n)!) * (3*n/2)!/(5*n/2)!.
Terms
- a(0) =1a(1) =24a(2) =1386a(3) =91392a(4) =6374082a(5) =458625024a(6) =33660501840
External references
- oeis: A347857
A347857
a(n) = (6*n)!/((3*n)!*(2*n)!) * (3*n/2)!/(5*n/2)!.