a(n)=9*a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=8, a(2)=72 .
A155198
a(n)=9*a(n-1)+a(n-2), n>2 ; a(0)=1, a(1)=8, a(2)=72 .
Terms
- a(0) =1a(1) =8a(2) =72a(3) =656a(4) =5976a(5) =54440a(6) =495936a(7) =4517864a(8) =41156712a(9) =374928272a(10) =3415511160a(11) =31114528712a(12) =283446269568
External references
- oeis: A155198