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A045667
Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse, inequivalent to complement and reversed complement.
2
0, 0, 0, 0, 16, 20, 168, 168, 896, 972, 4600, 4840, 20880, 22360, 93744, 99060, 405504, 428876, 1738080, 1828104, 7359600, 7716240, 30982864, 32355664, 129654144, 135002900, 540570160, 561187116, 2245878544, 2325812528
OFFSET
0,5
LINKS
FORMULA
a(n) = 2*n*A045685(n).
a(n) = A045662(n) - A045665(n). - Andrew Howroyd, Sep 14 2019
CROSSREFS
KEYWORD
nonn
STATUS
approved