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Search: id:A156723
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A156723 a(n)=A156253(n)-A156251(n) +0
1
0, 1, 0, 1, 0, 1, 2, 3, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 4, 5, 6, 7, 6, 7, 8, 9, 8, 9, 8, 9, 10, 9, 10, 11, 12, 11, 12, 13, 12, 13, 12, 13, 14, 15, 14, 15, 16, 17, 16, 17, 18, 17, 18, 17, 18, 19, 18, 19, 18, 19, 20, 21, 20, 21, 22, 21, 22, 21, 22, 23, 22, 23, 24, 25, 24, 25, 26, 27, 26, 27 (list; graph; listen)
OFFSET

1,7

COMMENT

a(2n) is odd, a(2n+1) is even.

FORMULA

a(n) is expected to be asymptotic to n/3.

CROSSREFS

Sequence in context: A086374 A123182 A069464 this_sequence A156549 A100795 A045781

Adjacent sequences: A156720 A156721 A156722 this_sequence A156724 A156725 A156726

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 14 2009

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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