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A091161 Number of primes of the form 12k + 1 less than 10^n. 4
0, 5, 36, 300, 2374, 19564, 166011, 1440021, 12710866, 113759426 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A091161 + A091162 + A091163 + A091164 +2 (for 2 & 3) = A006880.

Sequence in context: A188899 A052203 A027331 * A135149 A067305 A000806

Adjacent sequences:  A091158 A091159 A091160 * A091162 A091163 A091164

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 12 2004

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.