a(n) = 6^n * T(n, 4/3) where T is the Chebyshev polynomial of the first kind.
A099142
a(n) = 6^n * T(n, 4/3) where T is the Chebyshev polynomial of the first kind.
Terms
- a(0) =1a(1) =8a(2) =92a(3) =1184a(4) =15632a(5) =207488a(6) =2757056a(7) =36643328a(8) =487039232a(9) =6473467904a(10) =86042074112
External references
- oeis: A099142