OFFSET
1,1
REFERENCES
M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna, 1988.
Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, CittaStudiEdizioni, Milano, 1997.
PROG
(Magma) [n: n in [4..400]|IsPrime(7*n-23)] // Vincenzo Librandi, Dec 17 2010
(PARI) is(n)=isprime(7*n-23) \\ Charles R Greathouse IV, Jun 12 2017
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Dec 04 2003
EXTENSIONS
Corrected and extended by Vincenzo Librandi, Dec 17 2010
Offset corrected by Arkadiusz Wesolowski, Aug 09 2011
STATUS
approved