id:A123921 - OEIS Search Results

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Primes of form pq-2 where p and q are consecutive primes.

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5

13, 25589, 47051, 67589, 136889, 313589, 960389, 1005971, 1932017, 2301251, 2362331, 6100889, 6310061, 6901091, 7745051, 8236817, 9332987, 10956089, 13104389, 16850987, 19009589, 19201841, 19386371, 19998701, 20566079 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	EXAMPLE	`211*223-2=47051`
	MAPLE	`with (numtheory): for n from 1 to 1000 do if (tau(ithprime(n)ithprime(n+1)-2)=2) then print(ithprime(n), ithprime(n+1), ithprime(n)ithprime(n+1)-2); fi; od;`
	CROSSREFS	`Cf. A048880.` `Adjacent sequences: A123918 A123919 A123920 this_sequence A123922 A123923 A123924` `Sequence in context: A122429 A068731 A098562 this_sequence A124990 A013752 A076811`
	KEYWORD	`nice,nonn`
	AUTHOR	`Ville Saalo (vsaalo(AT)iki.fi), Nov 19 2006`

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Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

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