A073573 Numbers n such that n^3 + 4 is prime.

1, 3, 7, 9, 19, 25, 27, 45, 63, 69, 79, 85, 87, 99, 103, 109, 115, 117, 129, 133, 145, 169, 175, 183, 195, 207, 235, 277, 279, 283, 289, 295, 337, 343, 345, 355, 357, 363, 379, 469, 487, 495, 507, 519, 525, 529, 535, 537, 555, 559, 579, 645, 657, 663, 679, 703, 715, 717, 777, 783

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[ Range[ 550 ], PrimeQ[ #^3+4 ] & ]

Prog

(Magma)[n: n in [0..1000]|IsPrime(n^3+4)]; // Vincenzo Librandi, Dec 16 2010
(PARI) is(n)=isprime(n^3+4) \\ Charles R Greathouse IV, Feb 20 2017

Crossrefs

Cf. A067200 (n^3+2 is prime).

Sequence in context: A353397 A261072 A154508 * A309328 A059621 A034926

Adjacent sequences: A073570 A073571 A073572 * A073574 A073575 A073576

Keyword

nonn,easy

Author

Zak Seidov, Sep 01 2002

Extensions

Corrected by Zak Seidov, Aug 31 2006

More terms from Vincenzo Librandi, Dec 16 2010

Status

approved