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Search: id:A140413
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A140413 First trisection of today 1, 1, 1, 1, 3, 5, 9, 13, 21, 33: a(2n)=A000045(6n)+1, a(2n+1)=A000045(6n+3)-1. +0
3
1, 1, 9, 33, 145, 609, 2585, 10945, 46369, 196417 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A147147 A147154 A147275 this_sequence A097804 A146136 A147444

Adjacent sequences: A140410 A140411 A140412 this_sequence A140414 A140415 A140416

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Jun 17 2008

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

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