a(n) = (n^(2n)-1)/(n^2-1) for n > 1, a(1) = 1.
A343009
a(n) = (n^(2n)-1)/(n^2-1) for n > 1, a(1) = 1.
Terms
- a(0) =1a(1) =5a(2) =91a(3) =4369a(4) =406901a(5) =62193781a(6) =14129647351
External references
- oeis: A343009
A343009
a(n) = (n^(2n)-1)/(n^2-1) for n > 1, a(1) = 1.