a(n) = w(n+1)/(2*w(n)), where w=A203422.
A203423
a(n) = w(n+1)/(2*w(n)), where w=A203422.
Terms
- a(0) =-3a(1) =24a(2) =-250a(3) =3240a(4) =-50421a(5) =917504a(6) =-19131876a(7) =450000000a(8) =-11789738455a(9) =340545503232
External references
- oeis: A203423