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A270558 Area of the smallest convex n-gon such that all its sides, diagonals and area are distinct integers. 0
6, 378, 9870, 196950, 5695998, 12473070 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,1
COMMENTS
Does such an n-gon exist for all n >= 3? - Dmitry Kamenetsky, Feb 15 2017
LINKS
EXAMPLE
For n=3, we have the triangle with sides 3, 4 and 5. Its area is 6.
For n=4, we have the quadrilateral with sides 10, 17, 28, 35, diagonals 21 and 39, and area 378.
For n=5, we have the 5-gon with sides 21, 41, 175, 140, 85, diagonals 50, 105, 104, 204, 195, and area 9870.
For n=6, we have the 6-gon with sides 47, 663, 264, 169, 105, 1020, diagonals 700, 884, 975, 855, 952, 1001, 425, 520, 272, and area 196950.
For n=7, we have the 7-gon with sides 235, 1320, 1360, 2340, 612, 525, 5100, diagonals 1547, 2805, 4557, 4875, 2600, 4420, 4760, 5005, 3500, 3952, 4301, 2880, 3315, 1131, and area 5695998.
For n=8, we have the 8-gon with sides 1547, 612, 525, 5355, 235, 4275, 845, 1360, diagonals 2125, 2600, 5365, 5304, 2163, 1131, 5520, 5525, 3500, 2805, 5460, 5491, 3952, 3315, 5408, 4301, 3720, 4420, 4875, 4760, and area 12473070.
See the Rivera links for images of these.
CROSSREFS
Sequence in context: A099595 A158041 A233212 * A245398 A078207 A261296
KEYWORD
nonn,more
AUTHOR
Dmitry Kamenetsky, Mar 18 2016
EXTENSIONS
a(6)-a(8) from Luca Petrone, Feb 06 2017
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)