OFFSET
0,2
COMMENTS
Binomial transform of A083323.
LINKS
Index entries for linear recurrences with constant coefficients, signature (9,-26,24).
FORMULA
a(n) = 4^n - 3^n + 2^n
G.f.: (1-6*x+10*x^2)/((1-2*x)*(1-3*x)*(1-4*x))
E.g.f.: exp(4*x) - exp(3*x) + exp(2*x)
a(n) = 9*a(n-1) - 26*a(n-2) + 24*a(n-3). - Geoffrey Critzer, Dec 01 2013
MATHEMATICA
Table[4^n-3^n+2^n, {n, 0, 23}] (* Geoffrey Critzer, Dec 01 2013 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Apr 27 2003
STATUS
approved