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A118901
Volumes of cuboids with integer sides and main diagonal.
5
4, 32, 36, 108, 112, 140, 144, 220, 252, 256, 288, 364, 396, 400, 500, 540, 608, 612, 644, 756, 832, 864, 896, 900, 972, 1012, 1120, 1152, 1292, 1364, 1372, 1404, 1408, 1508, 1620, 1728, 1760, 1764, 1872, 1904, 1980, 1984
OFFSET
1,1
LINKS
Robin Visser, Table of n, a(n) for n = 1..10000 (terms n = 1..100 from Harvey P. Dale).
Eric Weisstein's World of Mathematics, Cuboid.
EXAMPLE
32 is the volume of the cuboid of sides 8,4,1 which has main diagonal = 9.
MATHEMATICA
With[{nn=50}, Take[Union[Times@@@Select[Union[Sort/@Tuples[Range[ 2nn], 3]], IntegerQ[ Sqrt[ Total[#^2] ]]&]], nn]] (* Harvey P. Dale, Jun 05 2016 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Giovanni Resta, May 05 2006
STATUS
approved