A091161 Number of primes of the form 12k + 1 less than 10^n.

0, 5, 36, 300, 2374, 19564, 166011, 1440021, 12710866, 113759426

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