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A067162 a(n) = A062361(n)/n. 2
1, 2, 3, 5, 7, 10, 12, 16, 23, 29, 34, 39, 53, 62, 78, 87, 110, 108, 136, 163, 184, 200, 242, 251, 297, 318, 389, 371, 449, 480, 547, 563, 679, 676, 759, 794, 900, 958, 1079, 1093, 1225, 1261, 1353, 1398, 1602, 1613, 1730, 1794, 1953, 2055, 2253, 2244, 2450 (list; graph; refs; listen; history; text; internal format)
OFFSET
4,2
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
Jean-François Alcover, Table of n, a(n) for n = 4..100
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).
MATHEMATICA
A062361 = Import["https://oeis.org/A062361/b062361.txt", "Table"][[All, 2]];
a[n_] := A062361[[n - 2]]/n;
a /@ Range[4, 100] (* Jean-François Alcover, Sep 11 2019 *)
CROSSREFS
Cf. A062361.
Sequence in context: A248578 A062442 A036964 * A002822 A191327 A109598
KEYWORD
easy,nonn
AUTHOR
Sascha Kurz, Jan 06 2002
STATUS
approved

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Last modified April 16 19:21 EDT 2024. Contains 371754 sequences. (Running on oeis4.)