OFFSET
1,1
COMMENTS
Except for the first term, all terms == 1 mod 6. - Zak Seidov, Dec 02 2009
Except 17, all terms == 1 mod 12. Primes of the form A028334(n+1)^2 + A024675(n)^2. - Thomas Ordowski, Jun 28 2013
LINKS
Zak Seidov, Table of n, a(n) for n=1..1000
FORMULA
Conjecture: a(n) ~ A224888(n). - Thomas Ordowski, Jul 25 2013
MATHEMATICA
Select[Mean/@Partition[Prime[Range[500]]^2, 2, 1], PrimeQ] (* Harvey P. Dale, Jun 16 2021 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Giovanni Teofilatto, Apr 26 2004
EXTENSIONS
Corrected and extended by Rick L. Shepherd, Nov 24 2004
STATUS
approved