A047251 - OEIS

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A047251

Numbers that are congruent to {1, 3, 4, 5} mod 6.

1, 3, 4, 5, 7, 9, 10, 11, 13, 15, 16, 17, 19, 21, 22, 23, 25, 27, 28, 29, 31, 33, 34, 35, 37, 39, 40, 41, 43, 45, 46, 47, 49, 51, 52, 53, 55, 57, 58, 59, 61, 63, 64, 65, 67, 69, 70, 71, 73, 75, 76, 77, 79, 81, 82, 83 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Index to sequences with linear recurrences with constant coefficients, signature (2,-2,2,-1)`
	FORMULA	`a(n) = 3n/2-1/2-cos(Pin/2)/2. G.f. ( x(1+x+x^3) ) / ( (1+x^2)(x-1)^2 ). - R. J. Mathar, Oct 08 2011`
	CROSSREFS	`Sequence in context: A079945 A039017 A153329 * A183213 A183172 A136495` `Adjacent sequences: A047248 A047249 A047250 * A047252 A047253 A047254`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 16 16:00 EST 2012. Contains 205938 sequences.