id:A128970 - OEIS Search Results

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a(n) is the n-th prime of the form n*x^2+1.

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2, 19, 193, 101, 35281, 727, 2269, 18433, 15877, 7841, 247501, 10093, 35153, 727777, 47041, 33857, 2913733, 19603, 1076237, 486721, 806737, 55001, 1907713, 345601, 193601, 7581601, 1037233, 84701, 42599377, 337081, 3797501, 2654209 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(6) is 727 because 61^2+1=7, 64^2+1=97, 65^2+1=151, 69^2+1=487, 610^2+1=601 and 611^2+1=727 are the first 6 primes of the form 6x^2+1.`
	CROSSREFS	`Sequence in context: A037637 A124262 A140781 this_sequence A114016 A126039 A091852` `Adjacent sequences: A128967 A128968 A128969 this_sequence A128971 A128972 A128973`
	KEYWORD	`nonn`
	AUTHOR	`John L. Drost (drost(AT)marshall.edu), Apr 28 2007`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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