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A013001 cos(arctan(x)+tan(x))=1-4/2!*x^2+16/4!*x^4-544/6!*x^6+25344/8!*x^8... 0
1, -4, 16, -544, 25344, -1920384, 246359040, -39508168704, 9120978370560, -2587275558617088, 939278027083448320, -411971792033339539456, 217927272725489369743360, -135949730585003375068184576 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
CROSSREFS
Sequence in context: A013138 A262546 A013006 * A218644 A013179 A144177
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)