id:A012877 - OEIS Search Results

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sech(sech(x)*log(x+1))=1-1/2!*x^2+3/3!*x^3+6/4!*x^4-60/5!*x^5...

+0
1

1, 0, -1, 3, 6, -60, -120, 3150, -4592, -195048, 1007520, 18349320, -224812632, -1637441520, 47577070632, 97108316760, -12176518106048, 54434672031488, 3267323510285952, -40295881951639488, -953528538620154880 (list; graph; listen)

	OFFSET	`0,4`
	CROSSREFS	`Sequence in context: A067609 A012473 A058161 this_sequence A103066 A137123 A137133` `Adjacent sequences: A012874 A012875 A012876 this_sequence A012878 A012879 A012880`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research