

A045675


Number of 2nbead 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 2nbead 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



