A201962 Primes of the form 10n^2 - 3.

7, 37, 157, 487, 997, 2557, 2887, 3607, 6247, 13687, 14437, 21157, 24007, 28087, 31357, 33637, 34807, 44887, 46237, 63997, 90247, 106087, 114487, 120997, 132247, 146407, 153757, 176887, 184957, 187687, 195997, 204487, 210247, 222007

Offset

1,1

Links

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

Mathematica

Select[Table[10n^2-3, {n, 1, 800}], PrimeQ]

Prog

(Magma) [a: n in [1..400] | IsPrime(a) where a is 10*n^2-3];

Crossrefs

Sequence in context: A201083 A036678 A085720 * A269257 A269258 A247308

Adjacent sequences: A201959 A201960 A201961 * A201963 A201964 A201965

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 07 2011

Status

approved