Numerator of Product_{k=1..n-1} k^(2k-n-1).

A280735

Numerator of Product_{k=1..n-1} k^(2k-n-1).

Terms

    a(0) =1a(1) =3a(2) =4a(3) =125a(4) =225a(5) =84035a(6) =2458624a(7) =162030456a(8) =8930250000

External references