id:A138646 - OEIS Search Results

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

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2, 7, 13, 19, 29, 31, 37, 41, 43, 61, 67, 73, 79, 83, 97, 103, 107, 109, 127, 139, 151, 157, 163, 167, 179, 181, 193, 199, 211, 223, 227 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`52-2=8, 57-2=33, 5*13-2=63,...`
	MATHEMATICA	`a={}; Do[p=Prime[n]; If[ !PrimeQ[5*p-2], AppendTo[a, p]], {n, 8^2}]; a`
	CROSSREFS	`Sequence in context: A063637 A020623 A109346 this_sequence A118755 A156012 A106011` `Adjacent sequences: A138643 A138644 A138645 this_sequence A138647 A138648 A138649`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), May 15 2008`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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