id:A085399 - OEIS Search Results

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Let Cn(x) be the n-th cyclotomic polynomial; a(n) is the first prime Cn(x) after Cn(1).

+0
3

2, 3, 7, 5, 31, 3, 127, 17, 73, 11, 12207031, 13, 8191, 43, 151, 257, 131071, 46441, 524287, 61681, 368089, 683, 11111111111111111111111, 241, 705429635566498619547944801, 2731, 262657, 15790321 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(11)=12207031 because C11(x) is composite for x=2,3,4 and C11(5)=12207031 is prime.`
	CROSSREFS	`Cf. A084732, A085398.` `Sequence in context: A051860 A155766 A153488 this_sequence A063696 A069587 A059843` `Adjacent sequences: A085396 A085397 A085398 this_sequence A085400 A085401 A085402`
	KEYWORD	`nonn`
	AUTHOR	`Don Reble (djr(AT)nk.ca), Jun 28 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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