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 A011686 A binary m-sequence: expansion of reciprocal of x^7 + x^6 + 1. 1
 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Sequence is 127-periodic. - Ray Chandler, Jun 24 2017 REFERENCES S. W. Golomb, Shift-Register Sequences, Holden-Day, San Francisco, 1967. H. D. Lueke, Korrelationssignale, Springer 1992, pp. 43-48. F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier/North Holland, 1978, p. 408. LINKS Joris Van Kerrebrouck, Table of n, a(n) for n = 0..126 FORMULA a(n) = a(n+127). - Gheorghe Coserea, Jun 15 2017 PROG (MATLAB) Feedback_shiftregister =[1, 1, 0, 0, 0, 0, 0];    % x^7 + x^6 (+1) sequence = [0 0 0 0 0 0 1];                 % start sequence for i = 1:127-7     sequence(i+7)=mod(Feedback_shiftregister*sequence(i:i+6)', 2) end % Joris Van Kerrebrouck, Jun 13 2017 CROSSREFS Sequence in context: A079365 A037822 A144600 * A169671 A070108 A011675 Adjacent sequences:  A011683 A011684 A011685 * A011687 A011688 A011689 KEYWORD nonn AUTHOR STATUS approved

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Last modified November 14 23:27 EST 2018. Contains 317221 sequences. (Running on oeis4.)