id:A046098 - OEIS Search Results

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Numbers n such that central binomial coefficient C(n, floor[n/2]) is square-free.

+0
20

1, 2, 3, 4, 5, 7, 8, 11, 17, 19, 23, 71 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`No other n < 10^8. - T. D. Noe (noe(AT)sspectra.com), Apr 06 2007`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A001405.` `Cf. A056651 (cubefree central binomial coefficients).` `Adjacent sequences: A046095 A046096 A046097 this_sequence A046099 A046100 A046101` `Sequence in context: A116470 A115649 A111795 this_sequence A091997 A124168 A054762`
	KEYWORD	`nonn,hard`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.