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 A130630 Periodic sequence with period 1 1 1 1 1 0 0 0 0. 0
 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,1). FORMULA a(n)=(1/324)*{-31*(n mod 9)+5*[(n+1) mod 9]+5*[(n+2) mod 9]+5*[(n+3) mod 9]+41*[(n+4) mod 9]+5*[(n+5) mod 9]+5*[(n+6) mod 9]+5*[(n+7) mod 9]+5*[(n+8) mod 9]}, with n>=0. - Paolo P. Lava, Jul 04 2007 G.f. -(1+x+x^2+x^3+x^4) / ( (x-1)*(1+x+x^2)*(x^6+x^3+1) ). - R. J. Mathar, Nov 19 2011 PROG (PARI) a(n)=1-n%9\5 \\ Charles R Greathouse IV, Jun 02 2011 CROSSREFS Sequence in context: A014064 A014119 A084052 * A059318 A071029 A071030 Adjacent sequences:  A130627 A130628 A130629 * A130631 A130632 A130633 KEYWORD nonn,easy,less AUTHOR Paul Curtz, Jun 19 2007 STATUS approved

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Last modified June 5 18:48 EDT 2020. Contains 334854 sequences. (Running on oeis4.)