a(n) = (10*n)!*(n/3)!/((5*n)!*(10*n/3)!*(2*n)!).
A276101
a(n) = (10*n)!*(n/3)!/((5*n)!*(10*n/3)!*(2*n)!).
Terms
- a(0) =1a(1) =1458a(2) =9723402a(3) =77636318760
External references
- oeis: A276101
A276101
a(n) = (10*n)!*(n/3)!/((5*n)!*(10*n/3)!*(2*n)!).