A067164 A067152(n)/n.

0, 1, 0, 2, 1, 4, 0, 9, 7, 10, 8, 21, 4, 34, 29, 43, 37, 68, 35, 82, 81, 106, 76, 125, 48, 166, 153, 185, 163, 234, 207, 283, 268, 365, 329, 404, 271, 492, 467, 540, 520, 646, 544, 719, 654, 791, 741, 978, 778, 1071, 1019, 1161, 1108, 1320, 1137, 1490, 1415, 1638

Offset

6,4

References

B. Poonen and M. Rubinstein, Number of Intersection Points Made by the Diagonals of a Regular Polygon, SIAM J. Discrete Mathematics, Vol. 11, pp. 135-156.

Links

Table of n, a(n) for n=6..63.

Sascha Kurz, m-gons in regular n-gons

B. Poonen and M. Rubinstein, The number of intersection points made by the diagonals of a regular polygon, SIAM J. on Discrete Mathematics, Vol. 11, No. 1, 135-156 (1998).

Sequences formed by drawing all diagonals in regular polygon

Crossrefs

Cf. A067152.

Sequence in context: A297108 A307626 A122161 * A140505 A295881 A371890

Adjacent sequences: A067161 A067162 A067163 * A067165 A067166 A067167

Keyword

easy,nonn

Author

Sascha Kurz, Jan 06 2002

Status

approved