id:A140808 - OEIS Search Results

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a(n) = the smallest composite of the form n*k -1.

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4, 9, 8, 15, 4, 35, 6, 15, 8, 9, 10, 35, 12, 27, 14, 15, 16, 35, 18, 39, 20, 21, 22, 95, 24, 25, 26, 27, 28, 119, 30, 63, 32, 33, 34, 35, 36, 75, 38, 39, 40, 125, 42, 87, 44, 45, 46, 95, 48, 49, 50, 51, 52, 161, 54, 55, 56, 57, 58, 119, 60, 123, 62, 63, 64, 65, 66, 135, 68, 69 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	MAPLE	`a:=proc(n) local i: for i while isprime(ni-1)=true do end do: ni-1 end proc: 4, 9, seq(a(n), n=3..70); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 12 2008]`
	CROSSREFS	`Cf. A061767.` `Sequence in context: A011381 A122824 A093491 this_sequence A163642 A085084 A075570` `Adjacent sequences: A140805 A140806 A140807 this_sequence A140809 A140810 A140811`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Jul 15 2008`
	EXTENSIONS	`More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 12 2008`

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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