OFFSET
1,2
COMMENTS
For obvious reasons, all terms are odd. - Harvey P. Dale, Sep 30 2012
Subsequence of squares of A032670. - Michel Marcus, Jun 22 2016
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[1, 400, 2]^2, PrimeQ[FromDigits[Join[{7}, IntegerDigits[#]]]]&] (* Harvey P. Dale, Sep 30 2012 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Claudio Meller, Nov 10 2009
STATUS
approved