OFFSET
1,1
LINKS
Daniel Starodubtsev, Table of n, a(n) for n = 1..10000
Peter Alfeld, The 10,000 smallest prime numbers.
EXAMPLE
71119 is a prime concatenated from the primes 7, 11 and 19.
MATHEMATICA
Select[ Table[ FromDigits[ Flatten[ IntegerDigits /@ {7, 11, Prime[n]}]], {n, 130}], PrimeQ[ # ] &] (* Robert G. Wilson v, Dec 20 2004 *)
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Parthasarathy Nambi, Dec 16 2004
EXTENSIONS
Extended by Ray Chandler and Robert G. Wilson v, Dec 22 2004
STATUS
approved