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A091163
Number of primes of the form 12k + 7 less than 10^n.
4
1, 6, 44, 311, 2410, 19667, 166183, 1440496, 12711847, 113763697
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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:
A203601
A091162
A156002
*
A189800
A227665
A102591
Adjacent sequences:
A091160
A091161
A091162
*
A091164
A091165
A091166
KEYWORD
nonn
AUTHOR
Robert G. Wilson v
, Jan 12 2004
STATUS
approved
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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)