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A201850 Primes of the form 7n^2 - 4. 1
3, 59, 563, 1571, 3083, 5099, 22739, 27779, 39371, 60539, 77171, 86243, 95819, 105899, 116483, 163859, 250043, 354371, 455171, 544883, 592763, 694571, 721283, 748499, 776219, 804443, 833171, 1016123, 1081139, 1148171, 1217219, 1324571 (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[7n^2-4, {n, 1, 1000}], PrimeQ]

PROG

(MAGMA) [a: n in [1..500] | IsPrime(a) where a is 7*n^2-4];

CROSSREFS

Sequence in context: A200957 A057175 A142642 * A013526 A305597 A062629

Adjacent sequences:  A201847 A201848 A201849 * A201851 A201852 A201853

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Dec 06 2011

STATUS

approved

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Last modified April 15 19:43 EDT 2021. Contains 342977 sequences. (Running on oeis4.)