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A091168
Number of primes of the form 30k + 13 less than 10^n.
8
0, 3, 20, 154, 1203, 9824, 83077, 720110, 6356062, 56883199, 514753678, 4700984929, 43258197713
OFFSET
1,2
CROSSREFS
Cf. A091165 + A091166 + A091167 + A091168 + A091169 + A091170 + A091171 + A091172 +3 (for 2, 3 & 5) = A006880.
Sequence in context: A354495 A336283 A091172 * A126596 A074560 A123355
KEYWORD
nonn,more
AUTHOR
Robert G. Wilson v, Jan 12 2004
EXTENSIONS
a(11)-a(13) from Hiroaki Yamanouchi, Oct 14 2014
STATUS
approved