a(0)=1, a(1)=9, a(n) = 18*a(n-1) - 9*a(n-2) for n>1.
A165232
a(0)=1, a(1)=9, a(n) = 18*a(n-1) - 9*a(n-2) for n>1.
Terms
- a(0) =1a(1) =9a(2) =153a(3) =2673a(4) =46737a(5) =817209a(6) =14289129a(7) =249849441a(8) =4368687777a(9) =76387735017
External references
- oeis: A165232