A097339 - OEIS

%I #8 Jun 13 2015 00:51:30

%S 1,3,12,35,80,157,280,471,768,1241,2024,3379,5824,10389,19128,36143,

%T 69632,135985,267976,531147,1056576,2106413,4204952,8400775,16791040,

%U 33570057,67126440,134237411,268457408,536895301,1073768824,2147513439

%N 2^n+n^3.

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (6,-14,16,-9,2).

%F G.f. : (1-3x+8x^2-11x^3-x^4)/((1-x)^4(1-2x)).

%t Table[2^n+n^3,{n,0,80}] (* _Vladimir Joseph Stephan Orlovsky_, Feb 15 2011*)

%Y Cf. A006127, A001580.

%K easy,nonn

%O 0,2

%A _Paul Barry_, Aug 05 2004