

A277066


Numbers k such that (266*10^k  11) / 3 is prime.


0



1, 2, 3, 4, 7, 9, 10, 14, 28, 58, 93, 121, 135, 207, 350, 423, 602, 859, 1026, 1864, 1966, 13738, 23299, 28126, 38691, 39403, 47499, 93577, 124022, 177577
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OFFSET

1,2


COMMENTS

For k>0, numbers such that the digits 88 followed by k1 occurrences of the digit 6 followed by the digit 3 is prime (see Example section).
a(31) > 3*10^5.


LINKS



EXAMPLE

3 is in this sequence because (266*10^3  11) / 3 = 88663 is prime.
Initial terms and primes associated:
a(1) = 1, 883;
a(2) = 2, 8863;
a(3) = 3, 88663;
a(4) = 4, 886663;
a(5) = 7, 886666663, etc.


MATHEMATICA

Select[Range[0, 100000], PrimeQ[(266*10^#  11) / 3] &]


PROG



CROSSREFS



KEYWORD

nonn,more


AUTHOR



EXTENSIONS



STATUS

approved



