A201704 - OEIS

A201704

Primes of the form 8*k^2 + 7.

7, 79, 5839, 7207, 8719, 18439, 25999, 28807, 41479, 45007, 48679, 93319, 109519, 121039, 145807, 180007, 209959, 294919, 313639, 342799, 415879, 472399, 583207, 720007, 734479, 778759, 935719, 952207, 1216807, 1331719, 1391119, 1431439

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

MATHEMATICA

Select[Table[8n^2+7, {n, 0, 200}], PrimeQ]

PROG

(Magma) [a: n in [0..500] | IsPrime(a) where a is 8*n^2+7];

CROSSREFS

Cf. A121068 (corresponding k).

Sequence in context: A159524 A113034 A267798 * A331424 A052385 A093947

Adjacent sequences: A201701 A201702 A201703 * A201705 A201706 A201707

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Dec 04 2011

STATUS

approved

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