Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A055730
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A055730 Number of primes < 5^n. +0
1
0, 3, 9, 30, 114, 445, 1821, 7671, 33118, 145713, 650133, 2934858, 13375865, 61444585, 284140656, 1321453490, 6175961983, 28988040005, 136575061279, 64562095545 (list; graph; listen)
OFFSET

0,2

LINKS

Index entries for sequences related to numbers of primes in various ranges

MATHEMATICA

Table[PrimePi[5^n], {n, 0, 19}]

CROSSREFS

Cf. A006880, A007053 and A040014.

Sequence in context: A117428 A134168 A124427 this_sequence A120018 A091353 A003604

Adjacent sequences: A055727 A055728 A055729 this_sequence A055731 A055732 A055733

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2000

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


AT&T Labs Research