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Search: id:A013203
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A013203 log(sech(x)+arcsin(x))=x-2/2!*x^2+6/3!*x^3-20/4!*x^4+128/5!*x^5... +0
1
1, -2, 6, -20, 128, -920, 7784, -75616, 863168, -10897792, 153777536, -2374754560, 40156766336, -733521418240, 14452100967680, -304697481490432, 6857570007949312, -163883915313774592 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Adjacent sequences: A013200 A013201 A013202 this_sequence A013204 A013205 A013206

Sequence in context: A074115 A013206 A073966 this_sequence A007847 A074008 A082690

KEYWORD

sign

AUTHOR

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

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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