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A131742 a(4n) = a(4n+1) = 0, a(4n+2) = 3n+1, a(4n+3) = 3n+2. 0
0, 0, 1, 2, 0, 0, 4, 5, 0, 0, 7, 8, 0, 0, 10, 11, 0, 0, 13, 14, 0, 0, 16, 17, 0, 0, 19, 20, 0, 0, 22, 23, 0, 0, 25, 26, 0, 0, 28, 29, 0, 0, 31, 32, 0, 0, 34, 35, 0, 0, 37, 38, 0, 0, 40, 41, 0, 0, 43, 44, 0, 0, 46, 47, 0, 0, 49, 50, 0, 0, 52, 53, 0, 0, 55, 56, 0, 0, 58, 59, 0, 0, 61, 62, 0, 0, 64 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

CROSSREFS

Sequence in context: A085969 A117434 A115179 * A056676 A098699 A021837

Adjacent sequences:  A131739 A131740 A131741 * A131743 A131744 A131745

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Sep 20 2007

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Last modified February 16 11:51 EST 2012. Contains 205908 sequences.