a(n) = 26*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 26.

A090247

a(n) = 26*a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 26.

Terms

    a(0) =2a(1) =26a(2) =674a(3) =17498a(4) =454274a(5) =11793626a(6) =306180002a(7) =7948886426a(8) =206364867074

External references