a(n) = ((n-1)^(n+1) + (-1)^n*(n+1)^(n-1))/(n^2).
A234252
a(n) = ((n-1)^(n+1) + (-1)^n*(n+1)^(n-1))/(n^2).
Terms
- a(0) =-1a(1) =1a(2) =0a(3) =23a(4) =112a(5) =2637a(6) =28928a(7) =705259a(8) =12021504a(9) =337390073a(10) =7752749056a(11) =252186614847
External references
- oeis: A234252