a(n) = hypergeometric([-n, n + 1], [-n - 1], n).
A323209
a(n) = hypergeometric([-n, n + 1], [-n - 1], n).
Terms
- a(0) =1a(1) =2a(2) =13a(3) =190a(4) =4641a(5) =161376a(6) =7312789a(7) =409186310a(8) =27272680705
External references
- oeis: A323209
A323209
a(n) = hypergeometric([-n, n + 1], [-n - 1], n).