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A029589 Expansion of (1+sin(x)+sin(x)^2)/(1-sin(x)+sin(x)^2). 0
1, 2, 4, -2, -64, -238, 1024, 18478, 64256, -1078558, -16672256, -22614242, 2401458176, 32373060722, -117093134336, -9756500186162, -106877784162304, 1553450981649602, 64518260702838784, 465844716994278718 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..19.

CROSSREFS

Sequence in context: A301460 A130172 A303320 * A121819 A134138 A201911

Adjacent sequences:  A029586 A029587 A029588 * A029590 A029591 A029592

KEYWORD

sign

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 6 08:51 EDT 2020. Contains 335476 sequences. (Running on oeis4.)