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A012032 sec(sin(sinh(x)))=1+1/2!*x^2+5/4!*x^4+13/6!*x^6-1303/8!*x^8... 0

%I

%S 1,1,5,13,-1303,-97351,-5539667,-182565627,23677748561,8153921374705,

%T 1571128609968341,190412412110488701,-16146953133290647751,

%U -22882305147029329939799

%N sec(sin(sinh(x)))=1+1/2!*x^2+5/4!*x^4+13/6!*x^6-1303/8!*x^8...

%K sign

%O 0,3

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

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Last modified August 12 13:08 EDT 2022. Contains 356077 sequences. (Running on oeis4.)