a(n) = [1 - (n + s)/2]_n * [1 - (n - s)/2]_n, where s = sqrt(-n*(2 + n)) and [x]_n is the Pochhammer function.
A374437
a(n) = [1 - (n + s)/2]_n * [1 - (n - s)/2]_n, where s = sqrt(-n*(2 + n)) and [x]_n is the Pochhammer function.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =96a(4) =2940a(5) =147015a(6) =10902528a(7) =1124057088a(8) =153811768320
External references
- oeis: A374437