A201961 Primes of the form 9n^2 - 8.

73, 433, 2017, 2593, 6553, 7561, 8641, 13681, 15121, 16633, 18217, 21601, 31321, 42841, 45361, 53353, 68113, 74521, 84673, 91801, 106921, 110881, 114913, 140617, 159193, 168913, 178921, 205201, 216217, 250993, 288361, 308017, 370873

Offset

1,1

Links

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

Mathematica

Select[Table[9n^2-8, {n, 1, 800}], PrimeQ]

Prog

(Magma) [a: n in [1..400] | IsPrime(a) where a is 9*n^2-8];

Crossrefs

Sequence in context: A031418 A142229 A299103 * A142145 A227340 A043427

Adjacent sequences: A201958 A201959 A201960 * A201962 A201963 A201964

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 07 2011

Status

approved