This sequence of numbers relates to something about polygons.
2007-01-19 17:49:55 · 4 answers · asked by Scythian1950 7 in Science & Mathematics ➔ Mathematics
The number of intersections of diagonals in the interior of a regular n-gon.
Goes ...49, 126, 161, 330, 301, 715 ...
ie. (line = 0, 2 lines = 0, triangle = 0, square = 1, pentagon = 5, hexagon = 13, and so on)
2007-01-19 17:54:43 · answer #1 · answered by jsprplc2006 4 · 5⤊ 0⤋
The sequence continues:
0, 0, 0, 1, 5, 13, 35, 49, 126, 161, 330, 301, 715, 757, 1365, 1377, 2380, 1837, 3876, 3841, 5985, 5941, 8855, 7297, 12650, 12481, 17550, 17249, 23751, 16801, 31465, 30913, 40920, 40257, 52360, 46981, 66045, 64981, 82251, 80881, 101270...
http://www.research.att.com/~njas/sequences/?q=0%2C+0%2C+0%2C+1%2C+5%2C+13%2C+35%2C+49%2C+126&language=english&go=Search
It is the number of intersections of diagonals in the interior of regular n-gon.
2007-01-19 20:35:21 · answer #2 · answered by Northstar 7 · 0⤊ 0⤋
when i looked at this ITS HARD!
2015-01-21 12:51:40 · answer #3 · answered by Emmanuel 1 · 0⤊ 0⤋
no idea
2007-01-19 17:52:41 · answer #4 · answered by Anonymous · 0⤊ 2⤋