id:A084732 - OEIS Search Results

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Let p be the n-th prime; Cp(x) be the p-th cyclotomic polynomial (x^p-1)/(x-1); a(n) is the first prime Cp(x) after Cp(1).

+0
5

3, 7, 31, 127, 12207031, 8191, 131071, 524287, 11111111111111111111111, 7369130657357778596659, 2147483647, 19013087418896543607659206142267856546797091624826498592389251997 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A084732(k) = A085399(prime(k))`
	EXAMPLE	`a(5)=12207031 because 11 is the 5th prime; C11(x) is composite for x=2,3,4 and C11(5)=12207031 is prime.`
	CROSSREFS	`Cf. A066180, A085399.` `Sequence in context: A088552 A000668 A136007 this_sequence A123488 A121620 A042271` `Adjacent sequences: A084729 A084730 A084731 this_sequence A084733 A084734 A084735`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Jun 14 2003`
	EXTENSIONS	`Edited by Don Reble (djr(AT)nk.ca), Jun 28 2003`

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

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