Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A072099
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A072099 First term = 1 and after, if n appears, n*(rank of n) does not. +0
1
1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77 (list; graph; listen)
OFFSET

1,2

COMMENT

Does lim n ->infinity (a(n)-n)/sqrt(n) = 1 ?

EXAMPLE

Second term is 2 (of rank 2) and 2*2 = 4 is not in the sequence. 4-th term is 5 and 4*5 = 20 is not in the sequence.

CROSSREFS

Sequence in context: A039122 A031975 A028729 this_sequence A046841 A164514 A000037

Adjacent sequences: A072096 A072097 A072098 this_sequence A072100 A072101 A072102

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 18 2002

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 December 5 20:25 EST 2009. Contains 170428 sequences.


AT&T Labs Research