Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A063175
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A063175 Composites for which the row of the prime-composite array (A063173) includes the leftmost element of a zero-only diagonal (A067677). +0
5
15, 21, 39, 51, 55, 75, 91, 99, 105, 121, 159, 165, 169, 187, 195, 249, 265, 285, 309, 325, 327, 339, 351, 385, 441, 471, 481, 489, 511, 517, 531, 595, 609, 615, 625, 685, 789, 805, 841, 879, 891, 909, 915, 939, 951, 955, 987, 999, 1027, 1035, 1045, 1057 (list; graph; listen)
OFFSET

1,1

LINKS

N. Fernandez, The prime-composite array, B(m,n) and the Borve conjectures

EXAMPLE

The 12th composite is 21. In the prime-composite array (A063173), all of the elements in the diagonal containing T(12,1) are 0. So 21 is in the sequence.

CROSSREFS

Cf. A063173, A063174, A063176, A067677.

Sequence in context: A081934 A095147 A081977 this_sequence A129752 A015831 A063176

Adjacent sequences: A063172 A063173 A063174 this_sequence A063176 A063177 A063178

KEYWORD

nonn

AUTHOR

N. Fernandez (primeness(AT)borve.org), Jul 09 2001

EXTENSIONS

Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 07 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 1 19:22 EST 2009. Contains 167811 sequences.


AT&T Labs Research