id:A155140 - OEIS Search Results

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Primes p such that both p-+4 are NotSquare-free.

+0
5

293, 347, 571, 829, 1021, 1229, 1327, 1373, 1471, 1621, 2111, 2129, 2371, 2531, 2579, 2879, 2887, 3181, 3271, 3929, 4621, 4801, 4909, 5279, 5333, 5521, 5639, 5683, 5827, 6133, 6421, 6521, 6709, 6863, 6871, 7079, 7321, 7529, 7591, 8179, 8221, 8429, 8963 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	<<NumberTheory`NumberTheoryFunctions` lst={}; Do[p=Prime[n]; If[ !SquareFreeQ[p-4]&&!SquareFreeQ[p+4], AppendTo[lst, p]], {n, 7!}]; lst
	CROSSREFS	`Cf. A153213, A049282, A155139` `Sequence in context: A048956 A043439 A098249 this_sequence A142284 A142784 A142847` `Adjacent sequences: A155137 A155138 A155139 this_sequence A155141 A155142 A155143`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 21 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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