%I
%S 1,8,4,28,8,52,12,76,16,100,20,124,24,148,28,172,32,196,36,220,40,244,
%T 44,268,48,292,52,316,56,340,60,364,64,388,68,412,72,436,76,460,80,
%U 484,84,508,88,532,92,556,96
%N Number of cells turned "ON" at nth stage of A160117.
%C First differences of A160117.
%C It appears that one of the bisections is A008574.  _Omar E. Pol_, Sep 20 2011
%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>
%H <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (0,2,0,1).
%F G.f.: x*(x^2+1)*(4*x^3 + x^2 + 8*x + 1) / ((x1)^2*(x+1)^2).  _Colin Barker_, Mar 04 2013
%F From _Colin Barker_, Apr 06 2013: (Start)
%F a(n) = 11  9*(1)^n + (7 + 5*(1)^n)*n for n > 2.
%F a(n) = 2*a(n2)  a(n4) for n > 6. (End)
%Y Cf. A139251, A160117, A160411, A160413, A160415.
%K nonn,easy
%O 1,2
%A _Omar E. Pol_, Jun 13 2009
%E a(10)a(27) from _Omar E. Pol_, Mar 26 2011
%E More terms from _Colin Barker_, Apr 06 2013
