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A177507
Primes of the form 4*10^n+3.
1
7, 43, 4003, 40000003, 40000000003, 40000000000000000000000000000000000000003
OFFSET
1,1
COMMENTS
a(9) has 1738 digits. - Vincenzo Librandi, Jan 03 2014
LINKS
MATHEMATICA
Select[Table[4 10^n + 3, {n, 0, 300}], PrimeQ] (* Vincenzo Librandi, Jan 03 2014 *)
PROG
(Magma) [a: n in [0..250] | IsPrime(a) where a is 4*10^n+3];
CROSSREFS
Cf. A101397.
Sequence in context: A289737 A065786 A015463 * A258182 A048605 A165210
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Dec 11 2010
STATUS
approved