0,2
Table of n, a(n) for n=0..9.
Index entries for linear recurrences with constant coefficients, signature (34, -416, 2174, -4095) conjectured.
From R. J. Mathar May 24 2010: (Start)
Conjecture: a(n) = 7^n - 5^(n+1)/2 + 13^n/2 + 9^n.
Conjecture: a(n) = 34*a(n-1) - 416*a(n-2) + 2174*a(n-3) - 4095*a(n-4).
Conjectured g.f.: 2*x*(5-94*x+425*x^2)/((9*x-1)*(13*x-1)*(7*x-1)*(5*x-1)).
(End)
Sequence in context: A034325 A239620 A253124 * A251730 A222487 A269608
Adjacent sequences: A178295 A178296 A178297 * A178299 A178300 A178301
nonn
R. H. Hardin, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010
approved