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A012935 sech(tan(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3+45/4!*x^4-300/5!*x^5... 0

%I

%S 1,0,-4,6,45,-300,-534,18102,-53375,-1330056,14429056,83284630,

%T -3017899731,8484163116,613472266078,-8040573553530,-103350766263711,

%U 3850271965266992,-4102891850851420,-1601296818449786010

%N sech(tan(x)+log(x+1))=1-4/2!*x^2+6/3!*x^3+45/4!*x^4-300/5!*x^5...

%K sign

%O 0,3

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

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Last modified September 25 12:12 EDT 2022. Contains 356984 sequences. (Running on oeis4.)