a(n) = 4^(n-1)*U(n-1, 3/2) where U is the Chebyshev polynomial of the second kind.
A099157
a(n) = 4^(n-1)*U(n-1, 3/2) where U is the Chebyshev polynomial of the second kind.
Terms
- a(0) =0a(1) =1a(2) =12a(3) =128a(4) =1344a(5) =14080a(6) =147456a(7) =1544192a(8) =16171008a(9) =169345024a(10) =1773404160a(11) =18571329536a(12) =194481487872
External references
- oeis: A099157