OFFSET
1,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..200
Index entries for linear recurrences with constant coefficients, signature (29,-224,196).
FORMULA
a(n) = (1+(13n-1)*14^n)/169. O.g.f.: x/((14*x-1)^2*(1-x)). - R. J. Mathar, Mar 05 2008
MAPLE
A014929 := proc(n) (1+(13*n-1)*14^n)/169 ; end: seq(A014929(n), n=1..10) ; # R. J. Mathar, Mar 05 2008
MATHEMATICA
Table[(1+(13n-1)*14^n)/169, {n, 20}] (* Wesley Ivan Hurt, Feb 26 2014 *)
PROG
(Magma) [(1+(13*n-1)*14^n)/169: n in [1..20]]; // Vincenzo Librandi, Mar 04 2014
(PARI) a(n) = (1+(13*n-1)*14^n)/169; \\ Jinyuan Wang, Mar 11 2020
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Vincenzo Librandi, Mar 04 2014
STATUS
approved