id:A073920 - OEIS Search Results

Search: id:A073920

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a(1)=1 and then odd numbers rearranged such that a(n) is prime if n is composite else vice-versa.

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1, 9, 15, 3, 21, 5, 25, 7, 11, 13, 27, 17, 33, 19, 23, 29, 35, 31, 39, 37, 41, 43, 45, 47, 53, 59, 61, 67, 49, 71, 51, 73, 79, 83, 89, 97, 55, 101, 103, 107, 57, 109, 63, 113, 127, 131, 65, 137, 139, 149, 151, 157, 69, 163, 167, 173, 179, 181, 75, 191, 77, 193, 197, 199 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Zak Seidov, A073920 [From Zak Seidov (zakseidov(AT)yahoo.com), Apr 15 2009]`
	CROSSREFS	`Cf. A073921.` `Sequence in context: A027009 A166654 A131224 this_sequence A130119 A058957 A105882` `Adjacent sequences: A073917 A073918 A073919 this_sequence A073921 A073922 A073923`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 19 2002`
	EXTENSIONS	`Extended and edited by T. D. Noe (noe(AT)sspectra.com), Apr 13 2009`

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

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