# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/

Search: id:a117110
Showing 1-1 of 1

%I A117110 #14 Jan 01 2024 11:42:14
%S A117110 0,1,7,22,100,376,1552,6112,24640,98176,393472,1572352,6292480,
%T A117110 25163776,100667392,402644992,1610629120,6442418176,25769869312,
%U A117110 103079084032,412317122560,1649266917376,6597070815232,26388276969472
%N A117110 Expansion of x*(1+5*x)/((1+2*x+1)*(1-4*x)).
%F A117110 a(n) = 2*a(n-1) + 8*a(n-2) for n>=3; a(0)=0, a(1)=1, a(2)=7.
%F A117110 O.g.f.: x*(1+5*x)/((1+2*x+1)*(1-4*x)). - _R. J. Mathar_, Dec 05 2007
%p A117110 a[0]:=0: a[1]:=1: a[2]:=7: for n from 3 to 26 do a[n]:=2*a[n-1]+8*a[n-2] od: seq(a[n],n=0..26);
%K A117110 nonn,easy
%O A117110 0,3
%A A117110 _Roger L. Bagula_, Apr 18 2006
%E A117110 Edited by _N. J. A. Sloane_, May 13 2006
%E A117110 New name using g.f. from _Joerg Arndt_, Jan 01 2024

# Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE