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A131380 a(3n)=2n, a(3n+1)=2n+2, a(3n+2)=2n+1. 0
0, 2, 1, 2, 4, 3, 4, 6, 5, 6, 8, 7, 8, 10, 9, 10, 12, 11, 12, 14, 13, 14, 16, 15, 16, 18, 17, 18, 20, 19, 20, 22, 21, 22, 24, 23, 24, 26, 25, 26, 28, 27, 28, 30, 29, 30, 32, 31, 32, 34, 33, 34, 36, 35, 36, 38, 37, 38, 40, 39, 40, 42, 41, 42, 44, 43, 44, 46, 45, 46, 48, 47, 48, 50 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A099312 A117505 A165053 * A100461 A124904 A187500

Adjacent sequences:  A131377 A131378 A131379 * A131381 A131382 A131383

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.