id:A058055 - OEIS Search Results

Search: id:A058055

Displaying 1-1 of 1 results found.

page 1

a(n) is the smallest positive number m such that m^2+n is a prime.

+0
1

1, 3, 8, 5, 12, 11, 18, 51, 82, 49, 234, 23, 42, 75, 86, 231, 174, 107, 288, 63, 80, 69, 102, 325, 166, 765, 128, 143, 822, 727, 276, 597, 226, 835, 702, 461, 254, 693, 592, 797, 1284, 349, 370, 2337, 596, 645, 3012, 1033, 590, 4083, 1490, 757, 882, 833 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=Min{ m>0 \| m^2+n is prime}`
	EXAMPLE	`n=6: a(6)=11 and 11^2+6 is 127, a prime; n=97: a(97)=2144 and 2144^2+97=4596833, the least prime of the form m^2+97.`
	CROSSREFS	`Cf. A053000.` `Sequence in context: A140385 A078361 A077151 this_sequence A078356 A050093 A120072` `Adjacent sequences: A058052 A058053 A058054 this_sequence A058056 A058057 A058058`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Nov 20 2000`
	EXTENSIONS	`Definition corrected by Zak Seidov, Mar 03 2008`

page 1

Search completed in 0.002 seconds

Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

AT&T Labs Research