Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A156900
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A156900 a(n) = the smallest prime power >= the nth positive squarefree integer. +0
4
1, 2, 3, 5, 7, 7, 11, 11, 13, 16, 16, 17, 19, 23, 23, 23, 27, 29, 31, 31, 37, 37, 37, 37, 41, 41, 41, 43, 43, 47, 47, 53, 53, 59, 59, 59, 59, 61, 64, 67, 67, 67, 71, 71, 71, 73, 79, 79, 79, 79, 83, 83, 89, 89, 89, 89, 97, 97, 97, 97, 97, 101, 103, 103, 107, 107, 107, 109, 113 (list; graph; listen)
OFFSET

1,2

COMMENT

The first positive squarefree integer is considered to be 1 here.

CROSSREFS

Cf. A081217, A156898, A156899, A005117, A000961.

Sequence in context: A076229 A160102 A137750 this_sequence A039734 A020482 A060308

Adjacent sequences: A156897 A156898 A156899 this_sequence A156901 A156902 A156903

KEYWORD

nonn

AUTHOR

Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Feb 17 2009

EXTENSIONS

Extended by D. S. McNeil (d.mcneil(AT)qmul.ac.uk), Mar 23 2009

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 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research