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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. 1
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(2*n*Pi/3) + sqrt(3)*sin(2*n*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.)