id:A047935 - OEIS Search Results

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Consider primes p with least positive primitive root g such that q=p+g is next prime after p; sequence gives values of g.

+0
3

1, 2, 2, 2, 2, 2, 2, 2, 2, 6, 2, 2, 2, 6, 2, 6, 10, 2, 6, 2, 2, 2, 6, 2, 2, 6, 6, 2, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 6, 2, 6, 2, 6, 6, 2, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 2, 2, 10, 2, 2, 2, 2, 6, 2, 6, 2, 2, 2, 2, 6, 2, 2, 2, 2, 10, 6, 10, 2, 2, 2, 10, 2, 2, 2, 6, 10 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 864.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000` `M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, December 1972 [alternative scanned copy].` `Index entries for primes by primitive root`
	EXAMPLE	`11 has primitive root 2 and 11+2 = 13 is prime after 11, which contributes a 2 to the sequence.`
	CROSSREFS	`Cf. A047933, A047934. See also A001918.` `Sequence in context: A064128 A104274 A008857 this_sequence A103795 A123627 A001991` `Adjacent sequences: A047932 A047933 A047934 this_sequence A047936 A047937 A047938`
	KEYWORD	`nice,nonn`
	AUTHOR	`Felice Russo (felice.russo(AT)katamail.com)`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Dec 22 1999`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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