a(n) = (12*n)!*(2*n)!/((9*n)!*(4*n)!*n!).
A295444
a(n) = (12*n)!*(2*n)!/((9*n)!*(4*n)!*n!).
Terms
- a(0) =1a(1) =110a(2) =28842a(3) =8558480a(4) =2679559018a(5) =864609808860
External references
- oeis: A295444
A295444
a(n) = (12*n)!*(2*n)!/((9*n)!*(4*n)!*n!).