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A319117 Sign of the n-th Maclaurin coefficient of 1/(exp(x) + exp(1)/2). 0
1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0

LINKS

Table of n, a(n) for n=0..73.

EXAMPLE

a(1) = -a(485) = a(969) = -1.

MAPLE

S:= series(1/(exp(x)+exp(1)/2), x, 147):

seq(signum(coeff(S, x, j)), j=0..146);

CROSSREFS

Cf. A210245, A210247.

Sequence in context: A154990 A209615 A242179 * A210245 A210247 A256175

Adjacent sequences: A319114 A319115 A319116 * A319118 A319119 A319120

KEYWORD

sign

AUTHOR

Mikhail Kurkov, Sep 10 2018

STATUS

approved

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Last modified January 29 18:12 EST 2023. Contains 359926 sequences. (Running on oeis4.)