id:A068181 - OEIS Search Results

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a(n)=-1/b(2n) where 1/(e^y-e^(y/3))= sum(i=-1,inf,b(i)*y^i).

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1, 18, 1944, 524880, 264539520, 214277011200, 254561089305600, 416971064282572800, 900657498850357248000, 2480410751833883860992000, 8483004771271882804592640000, 35272333838948488701496197120000 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=A007661(6n+1)=A032031(3n+1)`
	CROSSREFS	`Sequence in context: A055740 A072477 A019522 this_sequence A136834 A001325 A008994` `Adjacent sequences: A068178 A068179 A068180 this_sequence A068182 A068183 A068184`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 12 2002`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

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