id:A138645 - OEIS Search Results

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Primes p such that 7*p+2 is composite.

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2, 7, 13, 17, 19, 29, 31, 37, 41, 43, 59, 61, 67, 73, 79, 83, 89, 97, 103, 109, 113, 127, 137, 139, 149, 151, 157, 163, 179, 181, 191, 193, 199, 211, 223, 227 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`72+2=16, 77+2=51, 7*13+2=93,...`
	MATHEMATICA	`a={}; Do[p=Prime[n]; If[ !PrimeQ[7*p+2], AppendTo[a, p]], {n, 8^2}]; a`
	CROSSREFS	`Sequence in context: A030592 A154313 A065104 this_sequence A166246 A063206 A063099` `Adjacent sequences: A138642 A138643 A138644 this_sequence A138646 A138647 A138648`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), May 15 2008`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

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