a(n) = 8*a(n-1) + 8*a(n-2), n > 2, a(0)=1, a(1)=7, a(2)=63.
A155132
a(n) = 8*a(n-1) + 8*a(n-2), n > 2, a(0)=1, a(1)=7, a(2)=63.
Terms
- a(0) =1a(1) =7a(2) =63a(3) =560a(4) =4984a(5) =44352a(6) =394688a(7) =3512320a(8) =31256064a(9) =278147072a(10) =2475225088a(11) =22026977280a(12) =196017618944
External references
- oeis: A155132