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Search: id:A131757
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A131757 Period 10: repeat 3, 3, 3, -7, 3, 3, -7, 3, 3, -7. +0
1
3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n)=-(n mod 10)+[(n+1) mod 10]-[(n+3) mod 10]+[(n+4) mod 10]-[(n+6) mod 10]+[(n+7) mod 10], with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Oct 08 2007

CROSSREFS

Cf. A010705, A096915.

Sequence in context: A061021 A126608 A088195 this_sequence A135087 A084038 A026858

Adjacent sequences: A131754 A131755 A131756 this_sequence A131758 A131759 A131760

KEYWORD

sign

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Oct 04 2007

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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