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 A105396 A simple "Fractal Jump Sequence" (FJS). 1
 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6, 3, 6, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS See A105397 for definition of Fractal Jump Sequence. From Vincenzo Librandi, Nov 13 2010: (Start) First digit after the decimal point in the decimal expansion of (n^2 - 2)/3 (with n > 2). Examples: for n=3, (3^2-2)/3 =  2.(3); for n=4, (4^2-2)/3 =  4.(6); for n=5, (5^2-2)/3 =  7.(6); for n=6, (6^2-2)/3 = 11.(3); for n=7, (7^2-2)/3 = 15.(6). (End) LINKS FORMULA From Robert Israel, Aug 04 2019: (Start) a(n)=3 if 3|n, otherwise a(n)=6. G.f.: 3*(1+2*x+2*x^2)*x^3/(1-x^3). (End) CROSSREFS Equals 3*A130196. Sequence in context: A309448 A016662 A258271 * A247685 A185735 A339021 Adjacent sequences:  A105393 A105394 A105395 * A105397 A105398 A105399 KEYWORD base,easy,nonn AUTHOR Eric Angelini, May 01 2005 STATUS approved

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Last modified January 23 15:15 EST 2021. Contains 340385 sequences. (Running on oeis4.)