A362658 Number of bracelets consisting of four instances each of n swappable colors.

1, 1, 7, 297, 83488, 63698215, 93945180662, 235528677557853, 926363255677856473, 5389375509102629522572, 44328152493384890722579175, 497321572654372894502827791849, 7392063525541285464935001208117037, 142098205771751298697282911028204773107

Offset: 0

Author

Marko Riedel, Apr 28 2023

Keywords

• nonn

References

• F. Harary and E. Palmer, Graphical Enumeration, Academic Press, 1973, page 143.

Links

• Marko Riedel, Table of n, a(n) for n = 0..45
• H. Fripertinger, Enumeration in Musical Theory, Beiträge zur Elektronischen Musik, 1 (1992).
• Marko Riedel, math.stackexchange.com, Necklaces and bracelets

Crossrefs

Cf. A054499, A362657, A362659.