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Number of primes of the form 30k + 1 less than 10^n.
8

%I #5 Oct 14 2014 11:10:57

%S 0,2,18,152,1189,9807,83003,719984,6355189,56878661,514751823,

%T 4700968833,43258135129

%N Number of primes of the form 30k + 1 less than 10^n.

%Y Cf. A091165 + A091166 + A091167 + A091168 + A091169 + A091170 + A091171 + A091172 +3 (for 2, 3 & 5) = A006880.

%K nonn,more

%O 1,2

%A _Robert G. Wilson v_, Jan 12 2004

%E a(11)-a(13) from _Hiroaki Yamanouchi_, Oct 14 2014