a(n) = numerator of -(1/4)*n!*(2 + n!)*(-2 + 1/(1 + floor(n/2 - 1/2))) - n!*Sum_{m=1..1 + 2*floor(n/2 - 1/2)} 1/m.
A368592
a(n) = numerator of -(1/4)*n!*(2 + n!)*(-2 + 1/(1 + floor(n/2 - 1/2))) - n!*Sum_{m=1..1 + 2*floor(n/2 - 1/2)} 1/m.
Terms
- a(0) =-1a(1) =0a(2) =7a(3) =190a(4) =5826a(5) =214956a(6) =11104542a(7) =711175536a(8) =59256152496
External references
- oeis: A368592