OFFSET
0,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
J. Wallgren, Hierarchical sequences
Index entries for linear recurrences with constant coefficients, signature (10, -16).
FORMULA
G.f.: 12/((8*x-1)*(2*x-1)). [Maksym Voznyy (voznyy(AT)mail.ru), Jul 27 2009]
a(n) = 2^(n+2)*(4^(n+1)-1). - Peter Luschny, May 08 2014
MATHEMATICA
CoefficientList[Series[12/((8 x - 1) (2 x - 1)), {x, 0, 40}], x] (* Vincenzo Librandi, May 09 2014 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jonas Wallgren, Feb 02 2001
EXTENSIONS
More terms from Peter Luschny, May 08 2014
STATUS
approved