OFFSET
1,2
MATHEMATICA
Select[Range[0, 250], PrimeQ[FromDigits[Join[{5}, IntegerDigits[#], {9}]]]&] (* Harvey P. Dale, May 09 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, May 15 1998
EXTENSIONS
Offset changed by Andrew Howroyd, Aug 13 2024
STATUS
approved