Denominator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).

A004824

Denominator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =36a(5) =900a(6) =675a(7) =66150a(8) =6350400a(9) =34292160a(10) =857304000a(11) =12966723000a(12) =222286680000

External references