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Search: id:A139790
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A139790 a(0) = 1; for n >= 0, a(n+1)-2a(n) = 0, -1, -1, -3, -5, ... = -A001045. +0
1
1, 2, 3, 5, 7, 9, 7, -7, -57, -199, -569 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Cf. A136298, A136299.

Sequence in context: A105404 A075012 A067090 this_sequence A118784 A102246 A089743

Adjacent sequences: A139787 A139788 A139789 this_sequence A139791 A139792 A139793

KEYWORD

sign

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), May 21 2008

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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