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A091165
Number of primes of the form 30k + 1 less than 10^n.
8
0, 2, 18, 152, 1189, 9807, 83003, 719984, 6355189, 56878661, 514751823, 4700968833, 43258135129
OFFSET
1,2
CROSSREFS
Cf. A091165 + A091166 + A091167 + A091168 + A091169 + A091170 + A091171 + A091172 +3 (for 2, 3 & 5) = A006880.
Sequence in context: A091170 A207319 A361961 * A363568 A191814 A350569
KEYWORD
nonn,more
AUTHOR
Robert G. Wilson v, Jan 12 2004
EXTENSIONS
a(11)-a(13) from Hiroaki Yamanouchi, Oct 14 2014
STATUS
approved