A045657 Number of 2n-bead balanced binary strings, rotationally inequivalent to reverse, complement and reversed complement.

0, 0, 0, 0, 0, 80, 384, 2352, 9856, 42840, 169360, 676720, 2631072, 10265216, 39779600, 154498280, 599565952, 2330826752, 9068429544, 35332969392, 137817174800, 538204065336, 2103971573264, 8233197139552, 32247054724768

Offset

0,6

Links

Andrew Howroyd, Table of n, a(n) for n = 0..200

Formula

From Andrew Howroyd, Sep 15 2019: (Start)

Inverse Moebius transform of A045666.

a(n) = A000984(n) - A045653(n) - A045654(n) - A045655(n) + 2*A045656(n). (End)

Crossrefs

Cf. A000984, A045653, A045654, A045655, A045656, A045666.

Sequence in context: A233958 A233951 A045666 * A273292 A234333 A234326

Adjacent sequences: A045654 A045655 A045656 * A045658 A045659 A045660

Keyword

nonn

Author

David W. Wilson

Status

approved