id:A139852 - OEIS Search Results

Search: id:A139852

Displaying 1-1 of 1 results found.

page 1

Primes of the form 7x^2+16y^2.

+0
1

7, 23, 71, 79, 127, 151, 191, 239, 263, 359, 431, 463, 487, 599, 631, 743, 751, 823, 863, 911, 919, 967, 991, 1031, 1087, 1103, 1303, 1327, 1367, 1423, 1439, 1471, 1583, 1607, 1663, 1759, 1831, 1871, 1999, 2039, 2087, 2111, 2143, 2207, 2311 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Discriminant=-448. See A139827 for more information.`
	FORMULA	`Except for 7, the primes are congruent to {15, 23, 39} (mod 56).`
	MATHEMATICA	`QuadPrimes[7, 0, 16, 10000] (* see A106856 *)`
	CROSSREFS	`Sequence in context: A048458 A134350 A005342 this_sequence A141194 A045535 A001984` `Adjacent sequences: A139849 A139850 A139851 this_sequence A139853 A139854 A139855`
	KEYWORD	`nonn,easy`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), May 02 2008`

page 1

Search completed in 0.002 seconds

Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research