id:A141489 - OEIS Search Results

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Numbers n such that n^2 + n + 257 is prime.

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0, 2, 3, 4, 7, 9, 10, 11, 13, 14, 17, 18, 20, 21, 23, 24, 25, 27, 28, 30, 31, 34, 37, 41, 42, 44, 48, 49, 51, 53, 56, 59, 60, 63, 65, 66, 67, 69, 70, 73, 74, 77, 79, 80, 81, 83, 88, 90, 91, 93, 94, 95, 100 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`If n=100, then n^2 + n + 257 = 10357 (prime)`
	CROSSREFS	`Cf. A002837, A056561, A133157, A133160.` `Sequence in context: A120127 A047548 A095378 this_sequence A060253 A066276 A139442` `Adjacent sequences: A141486 A141487 A141488 this_sequence A141490 A141491 A141492`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Aug 09 2008`

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Last modified March 20 01:21 EDT 2010. Contains 173643 sequences.

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