id:A143581 - OEIS Search Results

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Numerators of coefficient of x^(n+1/2) in the series expansion of the haversine.

+0
2

2, 1, 3, 5, 35, 63, 231, 143, 6435, 12155, 46189, 88179, 676039, 1300075, 5014575, 9694845, 100180065, 116680311, 2268783825, 1472719325, 34461632205, 67282234305, 17534158031, 514589420475, 8061900920775, 5267108601573 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, Inverse Haversine`
	EXAMPLE	`2Sqrt[z] + z^(3/2)/3 + (3z^(5/2))/20 + (5z^(7/2))/56 + (35z^(9/2))/576 + ...`
	CROSSREFS	`Cf. A143582.` `Cf. A055786. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 05 2008]` `Sequence in context: A049902 A096631 A144057 this_sequence A096871 A077890 A077877` `Adjacent sequences: A143578 A143579 A143580 this_sequence A143582 A143583 A143584`
	KEYWORD	`nonn,frac`
	AUTHOR	`E. W. Weisstein (eric(AT)weisstein.com), Aug 24, 2008`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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