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A131452 a(3n)=4n, a(3n+1)=4n+2, a(3n+2)=4n+1. 0
0, 2, 1, 4, 6, 5, 8, 10, 9, 12, 14, 13, 16, 18, 17, 20, 22, 21, 24, 26, 25, 28, 30, 29, 32, 34, 33, 36, 38, 37, 40, 42, 41, 44, 46, 45, 48, 50, 49, 52, 54, 53, 56, 58, 57, 60, 62, 61, 64, 66, 65, 68, 70, 69, 72, 74, 73, 76, 78, 77, 80, 82, 81, 84, 86, 85, 88, 90, 89, 92, 94, 93 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A036662 A134306 A006265 * A111104 A026190 A160016

Adjacent sequences:  A131449 A131450 A131451 * A131453 A131454 A131455

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Oct 01 2007

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.