login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A045675 Number of 2n-bead balanced binary necklaces which are not equivalent to their reverse, complement or reversed complement. 1
0, 0, 0, 0, 0, 8, 32, 168, 616, 2380, 8472, 30760, 109644, 394816, 1420784, 5149948, 18736744, 68553728, 251902032, 929814984, 3445433608, 12814382620, 47817551136, 178982546512, 671813695340, 2528191984504, 9536849826816 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

The number of 2n-bead balanced binary necklaces is A003239(n). The number which are equivalent to their reverse, complement and reversed complement are respectively A128014(n), A000013(n) and A011782(n). - Andrew Howroyd, Sep 28 2017

LINKS

Table of n, a(n) for n=0..26.

Index entries for sequences related to necklaces

FORMULA

a(n) = A003239(n) - A128014(n) - A000013(n) - A011782(n) + 2*A045674(n). - Andrew Howroyd, Sep 28 2017

CROSSREFS

Cf. A000013, A003239, A011782, A045674, A128014.

Sequence in context: A200153 A188121 A045684 * A086348 A129798 A129792

Adjacent sequences:  A045672 A045673 A045674 * A045676 A045677 A045678

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 02:10 EDT 2019. Contains 322380 sequences. (Running on oeis4.)