a(0) = 1; a(n) = -(n!)^5 * Sum_{k=0..n-1} a(k) / (k! * (n-k))^5.
A337678
a(0) = 1; a(n) = -(n!)^5 * Sum_{k=0..n-1} a(k) / (k! * (n-k))^5.
Terms
- a(0) =1a(1) =-1a(2) =31a(3) =-7322a(4) =7281664a(5) =-22105862624
External references
- oeis: A337678
A337678
a(0) = 1; a(n) = -(n!)^5 * Sum_{k=0..n-1} a(k) / (k! * (n-k))^5.