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 A176616 Primes of the form x^2 + 7*y^2, where x and y=x+1 are consecutive natural numbers. 4
 7, 29, 67, 191, 277, 379, 631, 947, 1129, 1327, 2017, 2557, 2851, 4561, 4951, 5779, 6217, 8647, 9181, 12721, 13367, 14029, 15401, 16111, 17579, 20707, 21529, 22367, 24091, 24977, 31627, 36857, 37951, 42487, 43661, 44851, 47279, 53629, 58997 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Primes of the form 8*n^2+14*n+7 = (2*n+2)*(4*n+3)+1 = A000384(2*n+2)+1. - Vincenzo Librandi, Apr 25 2010 LINKS PROG (MAGMA) [ a: n in [0..250] | IsPrime(a) where a is 8*n^2+14*n+7 ] // Vincenzo Librandi, Apr 25 2010 CROSSREFS Cf. A176608. A285790 is an almost identical sequence. Sequence in context: A022272 A185438 A265803 * A231988 A141854 A267290 Adjacent sequences:  A176613 A176614 A176615 * A176617 A176618 A176619 KEYWORD nonn AUTHOR Giovanni Teofilatto, Apr 22 2010 EXTENSIONS Definition made more accurate by R. J. Mathar, May 04 2010 Corrected (inserted 7) and extended by Vincenzo Librandi, Apr 25 2010 STATUS approved

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Last modified August 18 09:26 EDT 2022. Contains 356204 sequences. (Running on oeis4.)