a(n) = a(n,m) = Sum_{k=0..n} binomial(m*k,k)*binomial(m*(n-k),n-k) for m=6.
A079679
a(n) = a(n,m) = Sum_{k=0..n} binomial(m*k,k)*binomial(m*(n-k),n-k) for m=6.
Terms
- a(0) =1a(1) =12a(2) =168a(3) =2424a(4) =35400a(5) =520236a(6) =7674144a(7) =113482584a(8) =1681028136a(9) =24932533800a(10) =370144424376
External references
- oeis: A079679