OFFSET
1,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
FORMULA
EXAMPLE
a(3) = 43.
43 + 2^2 = 43 + 4 = 47, which is prime.
43 + 4^2 = 43 + 16 = 59, which is prime.
43 + 6^2 = 43 + 36 = 79, which is prime.
MATHEMATICA
Select[Prime[Range[5000]], And@@PrimeQ[{#+4, #+16, #+36}]&] (* Harvey P. Dale, Jun 09 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Ray G. Opao, Mar 25 2004
EXTENSIONS
More terms from Harvey P. Dale, Jun 09 2011
STATUS
approved