A130509 - OEIS

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A130509

a(1)=3. a(2)=1. a(3)=2. a(n+3) = 3 + a(n), for all positive integers n.

3, 1, 2, 6, 4, 5, 9, 7, 8, 12, 10, 11, 15, 13, 14, 18, 16, 17, 21, 19, 20, 24, 22, 23, 27, 25, 26, 30, 28, 29, 33, 31, 32, 36, 34, 35, 39, 37, 38, 42, 40, 41, 45, 43, 44, 48, 46, 47 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`This sequence is the inverse permutation of A130508.`
	LINKS	`Table of n, a(n) for n=1..48.`
	FORMULA	`a(n) = n - cos(2nPi/3) + sqrt(3)sin(2n*Pi/3). - Wesley Ivan Hurt, Sep 26 2017`
	CROSSREFS	`Cf. A130508.` `Sequence in context: A080818 A334354 A052417 * A171072 A102035 A055179` `Adjacent sequences: A130506 A130507 A130508 * A130510 A130511 A130512`
	KEYWORD	`easy,nonn`
	AUTHOR	`Leroy Quet, Jun 01 2007`
	STATUS	`approved`

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Last modified January 27 12:47 EST 2021. Contains 340465 sequences. (Running on oeis4.)