a(n) = (10*n)!*(6*n)!/((9*n)!*(5*n)!*(2*n)!).
A295446
a(n) = (10*n)!*(6*n)!/((9*n)!*(5*n)!*(2*n)!).
Terms
- a(0) =1a(1) =30a(2) =2090a(3) =165648a(4) =13873002a(5) =1198158780a(6) =105534616880
External references
- oeis: A295446
A295446
a(n) = (10*n)!*(6*n)!/((9*n)!*(5*n)!*(2*n)!).