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A013332 cos(exp(x)-sec(x))=1-1/2!*x^2-3/4!*x^4+20/5!*x^5+3/6!*x^6... 0
1, 0, -1, 0, -3, 20, 3, 420, -343, 8424, -22249, 260040, -239547, 10498748, 94138107, -147119700, 19810696721, -201766341168, 3757708820591, -61124264974704, 781479753273933, -16996638107062684 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..21.

CROSSREFS

Sequence in context: A117844 A260371 A067607 * A223282 A223480 A063871

Adjacent sequences:  A013329 A013330 A013331 * A013333 A013334 A013335

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved

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Last modified November 18 02:07 EST 2019. Contains 329242 sequences. (Running on oeis4.)