OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
EXAMPLE
a(8)=10733 corresponds to n=21, therefore 10733=(3*21-1)^2+(4*21-1)^2=62^2+83^2 (see second comment in A154357). - Bruno Berselli, Dec 14 2011
MATHEMATICA
Join[{2}, Select[Table[25n^2-14n+2, {n, 500}], PrimeQ]] (* Harvey P. Dale, May 15 2011 *)
PROG
(Magma) [ a: n in [0..400] | IsPrime(a) where a is 25*n^2-14*n+2];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 07 2009
EXTENSIONS
Edited by Robert Hochberg, Jun 21 2010
STATUS
approved