OFFSET
1,1
COMMENTS
Arguably 2, 3, 5, and 7 should be in this sequence. - Charles R Greathouse IV, Sep 25 2012
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
177 becomes 1(8)7(8)7 which is the prime 18787.
MATHEMATICA
Select[Range[10, 700], PrimeQ[FromDigits[Riffle[IntegerDigits[#], 8]]]&] (* Harvey P. Dale, Sep 18 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Aug 15 1999
STATUS
approved