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A159352
Primes of the form "1 [0]_n 3" - with zeros between 1 and 3.
14
13, 103, 100003, 1000003, 100000000003, 100000000000000003, 1000000000000000003, 1000000000000000000000000000000000000003, 100000000000000000000000000000000000000000000000000000003
OFFSET
1,1
EXAMPLE
1000000000000000000000000000000000000003 is a prime with 38 zeros between 1 and 3.
MAPLE
select(isprime, [seq(10^k+3, k=1..998)]); # Robert Israel, Dec 28 2015
PROG
(Magma) [p: n in [1..100] | IsPrime(p) where p is 10^n+3 ]; // Klaus Brockhaus, Apr 12 2009
CROSSREFS
Cf. A159031.
Cf. A049054 (numbers n such that 10^n + 3 is prime), A102006 (numbers n such that 10*10^n + 3 is prime), A011557 (powers of 10).
Sequence in context: A100277 A087398 A080440 * A289859 A129762 A283121
KEYWORD
base,nonn
AUTHOR
Parthasarathy Nambi, Apr 11 2009
STATUS
approved