A111274 Erroneous enumeration of "congruent and symmetric divisions" of n points on a circle.

1, 2, 3, 6, 9, 24

Offset: 1

Author

Keywords

• dead

References

• Motzkin, T. "Relations Between Hypersurface Cross Ratios and a Combinatorial Formula for Partitions of a Polygon for Permanent Preponderance and for Non-Associative Products." Bull. Amer. Math. Soc. 54, page 360, 1948.

Links

• L. Smiley, a(5)

Crossrefs

See A111275 for the correct enumeration.

Extensions

a(5)=9 is clearly a clerical error.