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 A180596 Digital root of 6n. 7
 0, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3, 9, 6, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Period of 3. - Robert G. Wilson v, Sep 20 2010 LINKS Table of n, a(n) for n=0..104. Index entries for linear recurrences with constant coefficients, signature (0,0,1). FORMULA G.f.: 3*x*(2 + x + 3*x^2)/(1 - x^3). - Stefano Spezia, Apr 21 2022 a(n) = A010888(A008588(n)). - Michel Marcus, Apr 24 2022 MATHEMATICA f[n_] := Mod[6 n - 1, 9] + 1; f[0] = 0; Array[f, 105, 0] (* Robert G. Wilson v, Sep 20 2010 *) PadRight[{0}, 120, {9, 6, 3}] (* Harvey P. Dale, Dec 18 2012 *) CROSSREFS Cf. A010888, A008588. Cf. A180592, A180593, A180594, A180595, A180597, A180598, A180599. Column k = 6 in A353109. Sequence in context: A135935 A263183 A037905 * A154465 A176533 A214497 Adjacent sequences: A180593 A180594 A180595 * A180597 A180598 A180599 KEYWORD easy,nonn,base AUTHOR Odimar Fabeny, Sep 10 2010 EXTENSIONS More terms from Robert G. Wilson v, Sep 20 2010 STATUS approved

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Last modified May 25 04:23 EDT 2024. Contains 372782 sequences. (Running on oeis4.)