id:A101787 - OEIS Search Results

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|S(n)| where S(n) = {i : 1 <= i <= n and 4n-1 and 8n-1 are primes}.

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1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Number of Lucasian primes less than n.`
	CROSSREFS	`Cf. A002515, A101788.` `Sequence in context: A127971 A156752 A086673 this_sequence A064099 A134021 A130255` `Adjacent sequences: A101784 A101785 A101786 this_sequence A101788 A101789 A101790`
	KEYWORD	`easy,nonn`
	AUTHOR	`Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 16 2004`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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