OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MathOverflow, 3-7 primes in base 10
MATHEMATICA
Flatten[Table[Select[FromDigits/@Tuples[{3, 7}, n], PrimeQ], {n, 7}]] (* Vincenzo Librandi, Jul 27 2012 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved