Thanks to everyone who made a donation during our annual appeal! To see the list of donors, or make a donation, see the OEIS Foundation home page.
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (10,-9).
a(n) = 9*a(n-1)-4.
a(n) = 10*a(n-1)-9*a(n-2).
(MAGMA) [(11*9^n+1)/2: n in [0..30]];
Sequence in context: A090409 A212233 A180910 * A039742 A243667 A303562
Adjacent sequences: A199677 A199678 A199679 * A199681 A199682 A199683
Vincenzo Librandi, Nov 09 2011