This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..100 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 Cf. A005767, A118899, A118902. Sequence in context: A196250 A290809 A068088 * A275713 A114076 A078092 Adjacent sequences:  A118898 A118899 A118900 * A118902 A118903 A118904 KEYWORD nonn AUTHOR Giovanni Resta, May 05 2006 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 25 05:19 EDT 2019. Contains 326318 sequences. (Running on oeis4.)