A142959 - OEIS

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A142959

Numbers n such that both (n!)^2 + n! + 1 and (n!)^2 + 1 are prime.

1, 2, 3, 4, 76 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`For the numbers of digits of the associated primes, see A142960.`
	REFERENCES	`J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 76, pp 26, Ellipses, Paris 2008.`
	FORMULA	`A046029 INTERSECT A051856. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 08 2008]`
	CROSSREFS	`Sequence in context: A066776 A115901 A073325 * A173573 A037395 A009496` `Adjacent sequences: A142956 A142957 A142958 * A142960 A142961 A142962`
	KEYWORD	`nonn`
	AUTHOR	`Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 13 2008`

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Last modified February 15 20:03 EST 2012. Contains 205852 sequences.