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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; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
CROSSREFS
Cf. A091161 + A091162 + A091163 + A091164 +2 (for 2 & 3) = A006880.
Sequence in context: A027331 A357153 A255489 * A364765 A135149 A269007
Adjacent sequences: A091158 A091159 A091160 * A091162 A091163 A091164
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jan 12 2004
STATUS
approved

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Last modified May 17 10:20 EDT 2024. Contains 372594 sequences. (Running on oeis4.)