(MAGMAMagma) [a: n in [0..800] | IsPrime(a) where a is 7*n^2+5];

OEIS Server: https://oeis.org/edit/global/2944

_Vincenzo Librandi (vincenzo.librandi(AT)tin.it), _, Dec 03 2011

OEIS Server: https://oeis.org/edit/global/215

proposed

approved

editing

proposed

allocatedPrimes of forthe Vincenzoform Librandi7n^2 + 5.

5, 257, 1013, 2273, 30497, 36293, 90977, 183713, 197573, 326597, 383297, 423617, 533237, 707873, 734837, 790277, 1000193, 1097717, 1199777, 1270337, 1306373, 1379957, 1951493, 1996097, 2086817, 2371073, 2420213, 2570657, 3217793

1,1

Vincenzo Librandi, <a href="/A201606/b201606.txt">Table of n, a(n) for n = 1..5000</a>

Select[Table[7n^2+5, {n, 0, 3000}], PrimeQ]

(MAGMA) [a: n in [0..800] | IsPrime(a) where a is 7*n^2+5];

allocated

nonn,easy

Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Dec 03 2011

approved

editing

allocated for Vincenzo Librandi

allocated

approved