OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (7,-6).
FORMULA
a(n) = 6*a(n-1)+5. a(n) = 7*a(n-1)-6*a(n-2), n>1.
G.f.: ( 2+3*x ) / ( (6*x-1)*(x-1) ). - R. J. Mathar, Oct 30 2011
MATHEMATICA
Table[3*6^n-1, {n, 0, 30}] (* or *) LinearRecurrence[{7, -6}, {2, 17}, 30] (* Harvey P. Dale, May 22 2016 *)
PROG
(Magma) [3*6^n-1: n in [0..30]]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Oct 30 2011
STATUS
approved