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A013187 log(cosh(x)+tan(x))=x+1/3!*x^3-4/4!*x^4+25/5!*x^5-120/6!*x^6... 0
1, 0, 1, -4, 25, -120, 761, -5024, 42065, -378240, 3898321, -42905344, 521329705, -6794511360, 96017526281, -1448243646464, 23356125062945, -399450070548480, 7240133620964641, -138422733355024384 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

CROSSREFS

Sequence in context: A042651 A070764 A110051 * A069639 A175733 A013582

Adjacent sequences:  A013184 A013185 A013186 * A013188 A013189 A013190

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified February 16 10:07 EST 2012. Contains 205904 sequences.