id:A014629 - OEIS Search Results

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Number of segments created by diagonals of n-gon.

+0
1

0, 4, 15, 39, 84, 160, 279, 455, 704, 1044, 1495, 2079, 2820, 3744, 4879, 6255, 7904, 9860, 12159, 14839, 17940, 21504, 25575, 30199, 35424, 41300, 47879, 55215, 63364, 72384, 82335, 93279, 105280, 118404, 132719, 148295, 165204, 183520 (list; graph; listen)

	OFFSET	`3,2`
	FORMULA	`(n^4-6n^3+17n^2-24*n)/12.`
	CROSSREFS	`Sequence in context: A113289 A033813 A112666 this_sequence A062486 A053698 A059140` `Adjacent sequences: A014626 A014627 A014628 this_sequence A014630 A014631 A014632`
	KEYWORD	`nonn,easy`
	AUTHOR	`Mohammad K. Azarian (ma3(AT)evansville.edu)`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research