id:A072064 - OEIS Search Results

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A072064

Least k>0 such that prime(n)+k*n is prime.

+0
2

1, 1, 2, 1, 4, 1, 2, 3, 2, 3, 2, 2, 2, 2, 4, 3, 4, 1, 6, 3, 4, 1, 10, 1, 4, 1, 2, 2, 2, 2, 4, 1, 4, 1, 6, 2, 6, 2, 6, 3, 24, 1, 2, 2, 6, 3, 8, 1, 6, 3, 8, 5, 2, 2, 2, 3, 2, 4, 6, 2, 16, 3, 2, 2, 2, 1, 4, 3, 6, 1, 10, 1, 4, 2, 6, 6, 16, 3, 8, 2, 4, 1, 6, 2, 10, 3, 4, 4, 18, 2, 6, 1, 2 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`n=3, prime(3)=5: 5+13=8 is not prime, but 5+23=11, therefore a(3)=2 and A072063(3)=11.`
	CROSSREFS	`Cf. A034693, A000040, A072063.` `Sequence in context: A091891 A070194 A105584 this_sequence A105498 A083414 A163618` `Adjacent sequences: A072061 A072062 A072063 this_sequence A072065 A072066 A072067`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 12 2002`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

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