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A012791 arctanh(sec(x)*arcsin(x))=x+6/3!*x^3+148/5!*x^5+9184/7!*x^7... 0
1, 6, 148, 9184, 1066640, 199000736, 54431471040, 20523724218880, 10203766053312768, 6467780044492713472, 5090997086675585360896, 4871968356294907783585792, 5570589015199967686042095616 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A099185 A065986 A199226 * A089480 A056427 A056418

Adjacent sequences:  A012788 A012789 A012790 * A012792 A012793 A012794

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.