The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A091168 Number of primes of the form 30k + 13 less than 10^n. 8
0, 3, 20, 154, 1203, 9824, 83077, 720110, 6356062, 56883199, 514753678, 4700984929, 43258197713 (list; graph; refs; listen; history; text; internal format)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 8 07:10 EDT 2024. Contains 373207 sequences. (Running on oeis4.)