OFFSET
0,1
COMMENTS
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..5000
Index entries for linear recurrences with constant coefficients, signature (2,-1).
FORMULA
From Elmo R. Oliveira, Apr 03 2024: (Start)
G.f.: 13*(1+5*x)/(x-1)^2.
E.g.f.: 13*exp(x)*(1 + 6*x).
a(n) = 13*A016921(n).
a(n) = 2*a(n-1) - a(n-2) for n >= 2. (End)
MATHEMATICA
78*Range[0, 50] + 13 (* Paolo Xausa, Apr 04 2024 *)
PROG
(Magma) [13*(6*n + 1): n in [0..60]]; // Vincenzo Librandi, Jul 23 2011
(PARI) a(n)=78*n+13 \\ Charles R Greathouse IV, Oct 05 2011
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Omar E. Pol, Apr 27 2008
STATUS
approved