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A130784
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Periodic sequence with period 1 3 2 .
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6
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1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Continued fraction expansion of (3+sqrt(37))/7. [From Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 30 2010]
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LINKS
| Index entries for sequences related to linear recurrences with constant coefficients, signature (0,0,1).
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FORMULA
| a(n)=(n mod 3)+((n+1) mod 3), with n>=0. - Paolo P. Lava (paoloplava(AT)gmail.com), Jul 18 2007
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PROG
| (PARI) a(n)=[1, 3, 2][n%3+1] \\ Charles R Greathouse IV, Jun 02 2011
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CROSSREFS
| Cf. A176977.
Sequence in context: A164848 A130827 A070309 * A119910 A138034 A087818
Adjacent sequences: A130781 A130782 A130783 * A130785 A130786 A130787
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KEYWORD
| nonn,easy
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AUTHOR
| Paul Curtz (bpcrtz(AT)free.fr), Jul 15 2007
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