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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
OFFSET
0
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
Sequence in context: A154990 A209615 A242179 * A063747 A210245 A210247
KEYWORD
sign
AUTHOR
Mikhail Kurkov, Sep 10 2018 [verification needed]
STATUS
approved