A091168 Number of primes of the form 30k + 13 less than 10^n.

0, 3, 20, 154, 1203, 9824, 83077, 720110, 6356062, 56883199, 514753678, 4700984929, 43258197713

Offset

1,2

Links

Table of n, a(n) for n=1..13.

Crossrefs

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

Sequence in context: A354495 A336283 A091172 * A126596 A074560 A123355

Adjacent sequences: A091165 A091166 A091167 * A091169 A091170 A091171

Keyword

nonn,more

Author

Robert G. Wilson v, Jan 12 2004

Extensions

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

Status

approved