OFFSET
-1,1
LINKS
Harry J. Smith, Table of n, a(n) for n = -1..200
Index entries for linear recurrences with constant coefficients, signature (6, -11, 6).
FORMULA
From R. J. Mathar, Feb 19 2010: (Start)
a(n) = 6*a(n-1) - 11*a(n-2) + 6*a(n-3).
G.f.: (-18*x+15*x^2+5)/((1-x) * (3*x-1) * (2*x-1) * x). (End)
MATHEMATICA
Table[ 1^(n + 1) + 2^(n + 2) + 3^(n + 3), {n, -2, 24} ]
PROG
(PARI) { for (n=-1, 200, write("b066280.txt", n, " ", 1^n + 2^(n + 1) + 3^(n + 2)) ) } \\ Harry J. Smith, Feb 08 2010
CROSSREFS
KEYWORD
nonn
AUTHOR
George E. Antoniou, Dec 10 2001
EXTENSIONS
More terms from Robert G. Wilson v, Dec 11 2001
STATUS
approved