id:A087660 - OEIS Search Results

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Values of a certain hypergeometric function. Not known to be always integer-valued.

+0
2

4, 25, 228, 2620, 35164, 527663, 8613004, 150142594, 2759219428, 52953913663, 1053779339980, 21624992868276, 455655808661008, 9823903635742978, 216106936268122100, 4839230922051864504, 110093028451517403276 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`a(n) = 4*hypergeom([ -n, n/2+5/2, n/2+3], [4, 2], -4).`
	CROSSREFS	`Cf. A087659-A087662.` `Sequence in context: A001247 A031152 A010845 this_sequence A121660 A118835 A099696` `Adjacent sequences: A087657 A087658 A087659 this_sequence A087661 A087662 A087663`
	KEYWORD	`nonn`
	AUTHOR	`R. William Gosper (rwg(AT)tc.spnet.com), Sep 26 2003`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Sep 30 2003`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research