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 A160411 Number of cells turned "ON" at n-th stage of A160117. 8
 1, 8, 4, 28, 8, 52, 12, 76, 16, 100, 20, 124, 24, 148, 28, 172, 32, 196, 36, 220, 40, 244, 44, 268, 48, 292, 52, 316, 56, 340, 60, 364, 64, 388, 68, 412, 72, 436, 76, 460, 80, 484, 84, 508, 88, 532, 92, 556, 96 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS First differences of A160117. It appears that one of the bisections is A008574. - Omar E. Pol, Sep 20 2011 LINKS N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS Index entries for linear recurrences with constant coefficients, signature (0,2,0,-1). FORMULA G.f.: x*(x^2+1)*(4*x^3 + x^2 + 8*x + 1) / ((x-1)^2*(x+1)^2). - Colin Barker, Mar 04 2013 From Colin Barker, Apr 06 2013: (Start) a(n) = -11 - 9*(-1)^n + (7 + 5*(-1)^n)*n for n > 2. a(n) = 2*a(n-2) - a(n-4) for n > 6. (End) CROSSREFS Cf. A139251, A160117, A160411, A160413, A160415. Sequence in context: A173855 A143368 A160415 * A033473 A238163 A213773 Adjacent sequences:  A160408 A160409 A160410 * A160412 A160413 A160414 KEYWORD nonn,easy AUTHOR Omar E. Pol, Jun 13 2009 EXTENSIONS a(10)-a(27) from Omar E. Pol, Mar 26 2011 More terms from Colin Barker, Apr 06 2013 STATUS approved

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Last modified August 3 04:47 EDT 2021. Contains 346435 sequences. (Running on oeis4.)