id:A071416 - OEIS Search Results

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GCD(n, binomial(2*n, n)).

+0
2

1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 4, 1, 2, 15, 2, 1, 6, 1, 20, 3, 2, 1, 12, 1, 2, 1, 28, 1, 2, 1, 2, 3, 2, 7, 4, 1, 2, 1, 20, 1, 42, 1, 4, 45, 2, 1, 12, 1, 2, 3, 4, 1, 6, 1, 8, 3, 2, 1, 12, 1, 2, 3, 2, 5, 66, 1, 4, 3, 10, 1, 36, 1, 2, 15, 4, 77, 6, 1, 20, 1, 2, 1, 28, 5, 2, 3, 88, 1, 10, 91, 4, 1, 2, 5 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n)=n for n in A014847.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	EXAMPLE	`a(10) = GCD(10, binomial(20, 10)) = GCD(10, 184756) = 2.`
	CROSSREFS	`Cf. A000984.` `Adjacent sequences: A071413 A071414 A071415 this_sequence A071417 A071418 A071419` `Sequence in context: A102551 A086545 A126083 this_sequence A053589 A055770 A113766`
	KEYWORD	`nonn,nice`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 29 2002`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

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