id:A141613 - OEIS Search Results

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Nonprimes of the form n-(p(n+3)-p(n))/(p(n+2)-p(n+1)), where p(n)=n-th prime.

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	OFFSET	`1,2`
	COMMENT	`Entries are not repeated and shown in natural order.`
	EXAMPLE	`n=3: 3-(13-5)/(11-7)=1=a(1).` `n=4: 4-(17-7)/(13-11)=-1 negative, discarded.` `n=6: 6-(23-13)/(19-17)=1=a(1).` `n=7: 7-(29-17)/(23-19)=4=a(2).` `n=8: 8-(31-19)/(29-23)=6=a(3).` `n=10: 10-(41-29)/(37-31)=8=a(4).`
	CROSSREFS	`Cf. A000040, A141468.` `Sequence in context: A050695 A035139 A062115 this_sequence A072362 A084988 A004716` `Adjacent sequences: A141610 A141611 A141612 this_sequence A141614 A141615 A141616`
	KEYWORD	`nonn`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 10 2008`
	EXTENSIONS	`Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 26 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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