A168185 - OEIS

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A168185

Characteristic function of numbers that are not multiples of 12.

0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	COMMENTS	`a(n+12) = a(n);` `a(n) = A000007(A010881(n));` `a(A168186(n)) = 1; a(A008594(n)) = 0;` `A033444(n) = SUM(a(k)*(n-k): 0<=k<=n).`
	LINKS	`Index entries for characteristic functions` `Index to sequences with linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,0,1).`
	PROG	`(PARI) a(n)=!!(n%12) \\ Charles R Greathouse IV, Aug 21 2011`
	CROSSREFS	`Cf. A145568, A168184, A168182, A168181, A109720, A097325, A011558, A166486, A011655, A000035.` `Sequence in context: A011582 A145568 A123927 * A011583 A011584 A011585` `Adjacent sequences: A168182 A168183 A168184 * A168186 A168187 A168188`
	KEYWORD	`nonn,easy,mult`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 30 2009`

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Last modified February 13 21:09 EST 2012. Contains 205561 sequences.