id:A012172 - OEIS Search Results

Search: id:A012172

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sec(tan(tanh(x)))=1+1/2!*x^2+5/4!*x^4+13/6!*x^6+41/8!*x^8...

+0
1

1, 1, 5, 13, 41, 1529, -168851, 14151621, -1169749807, 65719458673, 5735813087573, -3489760303917315, 1000904582588332537, -229661980583327166359, 41111046331054702141117 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A080925 A085601 A111009 this_sequence A066873 A105262 A129789` `Adjacent sequences: A012169 A012170 A012171 this_sequence A012173 A012174 A012175`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.

AT&T Labs Research