Number of Lyndon words (aperiodic necklaces) with 3n beads of 3 colors, n beads of each color.

A074655

Number of Lyndon words (aperiodic necklaces) with 3n beads of 3 colors, n beads of each color.

Terms

    a(0) =1a(1) =2a(2) =14a(3) =186a(4) =2880a(5) =50450a(6) =952854a(7) =19003474a(8) =394394880a(9) =8439756660a(10) =185033201150

External references