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Search: id:A119560
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A119560 2jbasekzapsumseq[C*B]. +0
1
-1, 1, -3, 3, -3, 1, 1, -5, 5, -7, 7, -7, 5, -3, -1, 5, -7, 11, -11, 13, -13, 13, -11, 9, -5, 1, 5, -13, 17, -23, 27, -31, 33, -37, 37, -39, 39, -39, 37, -35, 31, -27, 21, -15, 7, 1, -11, 19, -27, 33, -41, 45, -51, 55, -59, 61, -65, 65, -67, 67, -67, 65, -63, 59 (list; graph; listen)
OFFSET

1,3

LINKS

Creighton Dement, Table of n, a(n) for n = 1..184

CROSSREFS

Sequence in context: A064353 A080311 A135368 this_sequence A140366 A153401 A123073

Adjacent sequences: A119557 A119558 A119559 this_sequence A119561 A119562 A119563

KEYWORD

sign

AUTHOR

Added by N. J. A. Sloane (njas(AT)research.att.com), based on Creighton Dement's web page, Jun 01 2006

EXTENSIONS

It would be nice to have a more explicit definition! - N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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