id:A064073 - OEIS Search Results

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Generalized tangent number d(8,n).

+0
2

8, 1408, 739328, 806453248, 1506300919808, 4297849713983488, 17390688314209599488, 94727563504456856240128, 668321603392783694711226368, 5928595592752632717848942215168 (list; graph; listen)

	OFFSET	`0,1`
	REFERENCES	`D. Shanks. "Generalized Euler and Class Numbers." Math. Comput. 21, 689-694, 1967. Math. Comput. 22, 699, 1968.`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`E.g.f.: Sum_{k>=0} a(k)x^(2k+1)/(2k+1)! = 2*sin(4x)/cos(8x).`
	CROSSREFS	`Equals 2^(4n+3) * A000464(n-1).` `Equals 2^(4n+3) * A000464(n).` `Sequence in context: A001418 A123268 A088080 this_sequence A096970 A114617 A017295` `Adjacent sequences: A064070 A064071 A064072 this_sequence A064074 A064075 A064076`
	KEYWORD	`nonn,easy`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Aug 31, 2001`

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

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