id:A138644 - OEIS Search Results

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Primes p such that 5*p+2 is composite.

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2, 5, 11, 17, 23, 29, 37, 41, 43, 47, 53, 59, 71, 83, 89, 101, 103, 107, 113, 127, 131, 137, 139, 149, 163, 167, 173, 179, 191, 197, 211, 227 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`52+2=12, 55+2=27, 5*11+2=57,...`
	MATHEMATICA	`a={}; Do[p=Prime[n]; If[ !PrimeQ[5*p+2], AppendTo[a, p]], {n, 8^2}]; a`
	CROSSREFS	`Sequence in context: A118754 A140559 A067775 this_sequence A164921 A156830 A140556` `Adjacent sequences: A138641 A138642 A138643 this_sequence A138645 A138646 A138647`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), May 15 2008`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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