a(n) = 2 * T(n,n/2) where T(n,x) is a Chebyshev polynomial of the first kind.
A343259
a(n) = 2 * T(n,n/2) where T(n,x) is a Chebyshev polynomial of the first kind.
Terms
- a(0) =2a(1) =1a(2) =2a(3) =18a(4) =194a(5) =2525a(6) =39202a(7) =710647a(8) =14760962a(9) =345946302a(10) =9034502498a(11) =260219353691
External references
- oeis: A343259