OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
EXAMPLE
8 is a member, as the concatenation of 8^2, 8 and 1 i.e. 6481 is a prime.
32 is a member as 1024321 (concatenation of 32^2, 32 and 1) is prime.
MATHEMATICA
Select[ Range[457], PrimeQ[ FromDigits[ Join[ IntegerDigits[ #^2], IntegerDigits[ # ], IntegerDigits[ #^0]]]] &]
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Mar 04 2002
EXTENSIONS
More terms from Jason Earls, Jun 10 2002
STATUS
approved