a(n) = ((2*n+2)*(2*n+3) - 1)*a(n-1) + 2*n*(2*n+1)*a(n-2), a(0)=1, a(1)=19.
A206308
a(n) = ((2*n+2)*(2*n+3) - 1)*a(n-1) + 2*n*(2*n+1)*a(n-2), a(0)=1, a(1)=19.
Terms
- a(0) =1a(1) =19a(2) =799a(3) =57527a(4) =6327971a(5) =987163475a(6) =207304329751
External references
- oeis: A206308