OFFSET
0,1
COMMENTS
Conjecture: Sequence is infinite. Subsidiary sequence: number of n-digit members.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
EXAMPLE
29 is a member as absolute(2-9) = 7 is a prime.
101 is a member as 1~0= 1, 0~1 = 1 and dd(101) = 11 is a prime.
MATHEMATICA
Select[Prime[Range[200]], PrimeQ[FromDigits[Abs[Differences[ IntegerDigits[ #]]]]]&] (* Harvey P. Dale, Oct 10 2014 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Sep 18 2003
EXTENSIONS
More terms from David Wasserman, Jun 15 2005
STATUS
approved