id:A007920 - OEIS Search Results

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Smallest number k such that n+k is prime.

+0
6

2, 1, 0, 0, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 3, 2, 1, 0, 1, 0, 3, 2, 1, 0, 5, 4, 3, 2, 1, 0, 1, 0, 5, 4, 3, 2, 1, 0, 3, 2, 1, 0, 1, 0, 3, 2, 1, 0, 5, 4, 3, 2, 1, 0, 5, 4, 3, 2, 1, 0, 1, 0, 5, 4, 3, 2, 1, 0, 3, 2, 1, 0, 1, 0, 5, 4, 3, 2, 1, 0, 3, 2, 1, 0, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0, 3, 2, 1, 0, 1, 0, 3, 2, 1, 0, 1 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Smarandache complementary prime function.` `a(n) = A007918(n) - n.`
	REFERENCES	`M. Popescu, V. Seleacu, About the Smarandache Complementary Prime Function, Smarandache Notions Journal, Vol. 7, No. 1-2-3, 1996, 12-22.` `F. Smarandache, "Only Problems, not Solutions!", Xiquan Publ., Phoenix-Chicago, 1993`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..10000` `M. L. Perez et al., eds., Smarandache Notions Journal` `F. Smarandache, Only Problems, Not Solutions!.`
	EXAMPLE	`a(1)=1 because 1+1=2=prime`
	CROSSREFS	`Cf. A064722.` `Adjacent sequences: A007917 A007918 A007919 this_sequence A007921 A007922 A007923` `Sequence in context: A140728 A130068 A051699 this_sequence A127587 A082926 A060564`
	KEYWORD	`nonn,easy,nice`
	AUTHOR	`R. Muller`
	EXTENSIONS	`More terms from Joanna S. Bartlett (s1117611(AT)cedarville.edu)`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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