Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A078831
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A078831 Numbers n with unique occurrence of all binary substrings representing primes in binary representation of n. +0
2
0, 1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 13, 16, 17, 19, 24, 25, 32, 33, 35, 48, 49, 64, 65, 67, 96, 97, 128, 129, 131, 192, 193, 256, 257, 259, 384, 385, 512, 513, 515, 768, 769, 1024, 1025, 1027, 1536, 1537, 2048, 2049, 2051, 3072, 3073, 4096, 4097, 4099, 6144, 6145 (list; graph; listen)
OFFSET

1,3

COMMENT

A078826(a(n)) = A078827(a(n)); A078830 is a subsequence.

LINKS

Ray Chandler, Table of n, a(n) for n = 1..110

EXAMPLE

n=12 -> '1100' contains two substrings representing distinct primes: '10'=2 and '11'=3, therefore 12 is a term.

CROSSREFS

Cf. A078826, A078827, A078830, A007088.

Sequence in context: A067314 A066022 A052047 this_sequence A031177 A164119 A033102

Adjacent sequences: A078828 A078829 A078830 this_sequence A078832 A078833 A078834

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 08 2002

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 03 2008

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 14:49 EST 2009. Contains 167514 sequences.


AT&T Labs Research