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Search: id:A130731
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A130731 Period 4: repeat 1 2 0 0. +0
1
1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0, 1, 2, 0, 0 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=(1/8)*{-(n mod 4)+[(n+1) mod 4]+5*[(n+2) mod 4]-[(n+3) mod 4]}, with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Aug 28 2007

CROSSREFS

Sequence in context: A039804 A035671 A131488 this_sequence A025875 A026840 A025873

Adjacent sequences: A130728 A130729 A130730 this_sequence A130732 A130733 A130734

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Aug 17 2007

EXTENSIONS

Edited by njas, Sep 15 2007

page 1

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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