id:A037034 - OEIS Search Results

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Least k such that 4*n*k-1 is a prime.

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1, 1, 1, 2, 1, 1, 3, 1, 2, 2, 1, 1, 2, 3, 1, 2, 1, 1, 2, 1, 1, 3, 4, 2, 2, 1, 1, 2, 3, 2, 5, 1, 1, 2, 1, 3, 3, 1, 2, 3, 1, 1, 5, 7, 1, 2, 3, 1, 3, 1, 5, 5, 1, 2, 2, 1, 1, 2, 13, 1, 2, 3, 1, 5, 4, 1, 6, 1, 3, 3, 1, 3, 5, 3, 2, 2, 1, 1, 2, 4, 2, 3, 1, 7, 3, 3, 1, 5, 4, 1, 2, 1, 2, 2, 1, 1, 3, 4, 3, 5, 6, 3, 2, 4 (list; graph; listen)

	OFFSET	`1,4`
	EXAMPLE	`a(5)=1 because 451-1=19 is a prime`
	CROSSREFS	`Cf. A016014.` `Adjacent sequences: A037031 A037032 A037033 this_sequence A037035 A037036 A037037` `Sequence in context: A128221 A115758 A124734 this_sequence A139462 A131376 A025840`
	KEYWORD	`nonn`
	AUTHOR	`Felice Russo (felice.russo(AT)katamail.com)`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu)`

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Last modified May 11 10:28 EDT 2008. Contains 139662 sequences.

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