A047317 - OEIS

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A047317

Numbers that are congruent to {1, 2, 4, 5, 6} mod 7.

1, 2, 4, 5, 6, 8, 9, 11, 12, 13, 15, 16, 18, 19, 20, 22, 23, 25, 26, 27, 29, 30, 32, 33, 34, 36, 37, 39, 40, 41, 43, 44, 46, 47, 48, 50, 51, 53, 54, 55, 57, 58, 60, 61, 62, 64, 65, 67, 68, 69, 71, 72, 74, 75, 76, 78, 79 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (1,0,0,0,1,-1).`
	FORMULA	`a(n) = +1a(n-1) +1a(n-5) -1a(n-6).` `a(n) = floor((7n-1)/5). [From Gary Detlefs (gdetlefs(AT)aol.com), May 14 2001]` `G.f. x(1+x+2x^2+x^3+x^4+x^5) / ( (x^4+x^3+x^2+x+1)*(x-1)^2 ). - R. J. Mathar, Dec 03 2011`
	CROSSREFS	`Sequence in context: A087118 A039032 A000062 * A099797 A004059 A189404` `Adjacent sequences: A047314 A047315 A047316 * A047318 A047319 A047320`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.