This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A094359 #23 May 08 2024 08:53:11 %S A094359 0,1,2,2,10,6,42,22,170,86,682,342,2730,1366,10922,5462,43690,21846, %T A094359 174762,87382,699050,349526,2796202,1398102,11184810,5592406,44739242, %U A094359 22369622,178956970,89478486,715827882,357913942,2863311530,1431655766 %N A094359 Pair reversal of a Jacobsthal sequence. %C A094359 Pair reversal of A078008. %C A094359 Pisano period lengths: 1, 1, 6, 1, 4, 6, 6, 2, 18, 4, 10, 6, 12, 6, 12, 2, 8, 18, 18, 4, ... - _R. J. Mathar_, Aug 10 2012 %H A094359 Vincenzo Librandi, <a href="/A094359/b094359.txt">Table of n, a(n) for n = 0..1000</a> %H A094359 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (-1,4,4). %F A094359 a(n) = 5*2^n/12 - 2(-1)^n/3 + (-2)^n/4. %F A094359 G.f.: x*(1+3*x)/((1+x)*(1-4*x^2)). %F A094359 a(n+1) - 2*a(n) = A000918(n) signed. - _Paul Curtz_, Jun 29 2008 %o A094359 (Magma) [5*2^n/12-2*(-1)^n/3+(-2)^n/4: n in [0..35]]; // _Vincenzo Librandi_, Aug 12 2011 %Y A094359 Cf. A078008, A084183, A094360. %K A094359 easy,nonn %O A094359 0,3 %A A094359 _Paul Barry_, Apr 26 2004