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Search: id:A117942
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A117942 a(n)=a(3n)=-a(3n+1)=-a(3n+2)/2. +0
3
1, -1, -2, -1, 1, 2, -2, 2, 4, -1, 1, 2, 1, -1, -2, 2, -2, -4, -2, 2, 4, 2, -2, -4, 4, -4, -8, -1, 1, 2, 1, -1, -2, 2, -2, -4, 1, -1, -2, -1, 1, 2, -2, 2, 4, 2, -2, -4, -2, 2, 4, -4, 4, 8, -2, 2, 4, 2, -2, -4, 4, -4, -8, 2, -2, -4, -2, 2, 4, -4, 4 (list; graph; listen)
OFFSET

0,3

COMMENT

a(n)=a(3n)/a(0)=a(3n+1)/a(1)=a(3n+2)/a(2). Row sums of A117941. abs(A117942)=A117943.

CROSSREFS

Sequence in context: A133098 A145788 A117592 this_sequence A066877 A029255 A029272

Adjacent sequences: A117939 A117940 A117941 this_sequence A117943 A117944 A117945

KEYWORD

sign

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Apr 05 2006

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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