A201792 Primes of the form 6n^2 - 7.

17, 47, 89, 479, 593, 719, 857, 2393, 2897, 3167, 3449, 4049, 5039, 5393, 10079, 11087, 12143, 12689, 16217, 17489, 18143, 20177, 20879, 23057, 25343, 26927, 27737, 28559, 34649, 36497, 38393, 39359, 46457, 48593, 50777, 62417, 63647

Offset

1,1

Links

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

Mathematica

Select[Table[6n^2-7, {n, 1, 700}], PrimeQ]

Prog

(Magma) [a: n in [1..200] | IsPrime(a) where a is 6*n^2-7];

Crossrefs

Sequence in context: A061275 A128468 A031374 * A039949 A220081 A229448

Adjacent sequences: A201789 A201790 A201791 * A201793 A201794 A201795

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 06 2011

Status

approved