A091167 Number of primes of the form 30k + 11 less than 10^n.

0, 3, 22, 154, 1198, 9810, 83101, 720314, 6356197, 56882858, 514765307, 4700992147, 43258234871, 400617697395, 3730571503815, 34904792970021, 327944647134270, 3092494296109422, 29257203482479613

Offset

1,2

Links

Table of n, a(n) for n=1..19.

Crossrefs

Cf. A091165 + A091166 + A091167 + A091168 + A091169 + A091170 + A091171 + A091172 +3 (for 2, 3 & 5) = A006880.

Sequence in context: A372199 A037775 A037663 * A037782 A041661 A037586

Adjacent sequences: A091164 A091165 A091166 * A091168 A091169 A091170

Keyword

nonn,more

Author

Robert G. Wilson v, Jan 12 2004

Extensions

a(11)-a(13) from Hiroaki Yamanouchi, Oct 14 2014

a(14)-a(19) from Benjamin Chaffin, Jun 02 2026

Status

approved