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A098714 This is the perimeter (n) of square triangles with integer sides and that have only a single solution. +0
1
12, 24, 30, 36, 40, 48, 56, 70, 72, 80, 96, 108, 112, 126, 140, 150, 154, 156, 160, 176, 182, 192, 198, 200, 204, 208, 216, 220, 224, 228, 234, 260, 276, 286, 306, 308, 320, 324, 340, 348, 350, 352, 364, 372, 374, 378, 380, 384, 392, 400, 416, 418, 442, 444 (list; graph; listen)
OFFSET

1,1

LINKS

Project Euler, Problem 75: Find the number of different lengths of wire that can form a right angle triangle in only one way.

Index entries related to Pythagorean Triples.

FORMULA

n = a + b + c; c^2=a^2+b^2; a, b, c (sides) and n (perimeter) are integers; for a given "n" there is only a single trio of a, b and c.

CROSSREFS

Sequence in context: A027854 A009096 A010814 this_sequence A108938 A085236 A068567

Adjacent sequences: A098711 A098712 A098713 this_sequence A098715 A098716 A098717

KEYWORD

nonn

AUTHOR

Marcus Rezende (marcus(AT)anp.gov.br), Sep 29 2004

EXTENSIONS

More terms from Hugo Pfoertner (hugo(AT)pfoertner.org) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 27 2004

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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