Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A045664
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A045664 Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reversed complement. +0
1
1, 2, 4, 18, 48, 150, 324, 882, 1920, 4536, 9900, 22506, 48240, 106470, 227556, 490950, 1044480, 2228190, 4708368, 9961434, 20950800, 44037378, 92229588, 192937938, 402549120, 838860000, 1744617420, 3623864832, 7515733680 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Equals 2*n*A000740(n), n>0.

Sequence in context: A143533 A064723 A151449 this_sequence A106520 A093045 A083694

Adjacent sequences: A045661 A045662 A045663 this_sequence A045665 A045666 A045667

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.