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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: A052203 A027331 A255489 * A135149 A269007 A246510

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 March 28 05:07 EDT 2017. Contains 284182 sequences.