Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A100959
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A100959 Non-semiprimes. +0
8
1, 2, 3, 5, 7, 8, 11, 12, 13, 16, 17, 18, 19, 20, 23, 24, 27, 28, 29, 30, 31, 32, 36, 37, 40, 41, 42, 43, 44, 45, 47, 48, 50, 52, 53, 54, 56, 59, 60, 61, 63, 64, 66, 67, 68, 70, 71, 72, 73, 75, 76, 78, 79, 80, 81, 83, 84, 88, 89, 90, 92, 96, 97, 98, 99, 100, 101, 102, 103, 104 (list; graph; listen)
OFFSET

1,2

COMMENT

A001222(a(n)) <> 2; a(n) <> A020639(a(n)) * A006530(a(n)); complement of A001358; A064911(a(n)) = 0.

LINKS

Eric Weisstein's World of Mathematics, Semiprime

CROSSREFS

Sequence in context: A028743 A106735 A082634 this_sequence A166982 A026422 A026424

Adjacent sequences: A100956 A100957 A100958 this_sequence A100960 A100961 A100962

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 24 2004

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