A201710 Primes of the form 10n^2 + 3.

3, 13, 43, 163, 643, 1213, 1693, 3613, 4003, 6763, 9613, 10243, 12253, 13693, 18493, 21163, 22093, 27043, 30253, 44893, 49003, 72253, 82813, 96043, 100003, 102013, 112363, 114493, 141613, 153763, 156253, 169003, 179563, 196003, 228013

Offset

1,1

Links

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

Mathematica

Select[Table[10n^2+3, {n, 0, 800}], PrimeQ]

Prog

(Magma) [a: n in [0..300] | IsPrime(a) where a is 10*n^2+3];

Crossrefs

Sequence in context: A049156 A054771 A258776 * A019008 A062609 A004660

Adjacent sequences: A201707 A201708 A201709 * A201711 A201712 A201713

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 04 2011

Status

approved