A057822 - OEIS

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A057822

Smaller of pair of twin primes whose average is LCM[1,...,m] for some m.

5, 11, 59, 419, 232792559, 442720643463713815199 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	FORMULA	`If z=A051451(n), then {z-1, z+1} are twin primes.`
	EXAMPLE	`(419+421)/2=420=LCM[1,2,3,4,5,6,7] No more such primes occurs below m<2000. Known values of m such that LCM[1,..,m] is a twin prime mean value are as follows: {3,4,5,6,7,19,20,21,22,47,48}.`
	CROSSREFS	`Cf. A003418, A051451, A049536, A057706.` `Sequence in context: A104364 A136669 A057824 * A168243 A173875 A095150` `Adjacent sequences: A057819 A057820 A057821 * A057823 A057824 A057825`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Nov 08 2000`

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Last modified February 14 05:35 EST 2012. Contains 205570 sequences.