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A133695 a(n) = 2*A008683 - 1. 1
1, -3, -3, -1, -3, 1, -3, -1, -1, 1, -3, -1, -3, 1, 1, -1, -3, -1, -3, -1, 1, 1, -3, -1, -1, 1, -1, -1, -3, -3, -3, -1, 1, 1, 1, -1, -3, 1, 1, -1, -3, -3, -3, -1, -1, 1, -3, -1, -1, -1, 1, -1, -3, -1, 1, -1, 1, 1, -3, -1, -3, 1, -1, -1, 1, -3, -3, -1, 1, -3, -3, -1, -3, 1, -1, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..76.

FORMULA

a(n) = 2*A008683 - 1, where A008683 = the Mobius sequence.

EXAMPLE

a(5) = -3 = 2*(-1) - 1.

CROSSREFS

Cf. A008683.

Sequence in context: A180938 A123561 A323626 * A138114 A124330 A055177

Adjacent sequences:  A133692 A133693 A133694 * A133696 A133697 A133698

KEYWORD

sign

AUTHOR

Gary W. Adamson, Sep 20 2007

EXTENSIONS

More terms from Petros Hadjicostas, Jul 29 2019

STATUS

approved

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Last modified January 16 18:17 EST 2022. Contains 350376 sequences. (Running on oeis4.)