A128420 - OEIS

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A128420

Numbers n such that p(n)# + p(n+1)# -1 is prime, where p(n)# is the product of first n primes (A002110).

0, 1, 3, 6, 8, 10, 12, 37, 72, 92, 142, 295, 1529, 1625, 1914, 2276, 4423 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	CROSSREFS	`Cf. A002110, A057704, A128421.` `Sequence in context: A190058 A159061 A180398 * A099135 A189471 A169863` `Adjacent sequences: A128417 A128418 A128419 * A128421 A128422 A128423`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierre-cami(AT)bbox.fr), Mar 02 2007`
	EXTENSIONS	`Corrected by Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 06 2007` `Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 13 2007`

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Last modified February 16 20:57 EST 2012. Contains 205967 sequences.