a(n) = 2 * T(n,(n+1)/2) where T(n,x) is a Chebyshev polynomial of the first kind.
A343260
a(n) = 2 * T(n,(n+1)/2) where T(n,x) is a Chebyshev polynomial of the first kind.
Terms
- a(0) =2a(1) =2a(2) =7a(3) =52a(4) =527a(5) =6726a(6) =103682a(7) =1874888a(8) =38925119a(9) =912670090a(10) =23855111399a(11) =687808321212
External references
- oeis: A343260