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 A010814 Perimeters of integer-sided right triangles. 10
 12, 24, 30, 36, 40, 48, 56, 60, 70, 72, 80, 84, 90, 96, 108, 112, 120, 126, 132, 140, 144, 150, 154, 156, 160, 168, 176, 180, 182, 192, 198, 200, 204, 208, 210, 216, 220, 224, 228, 234, 240, 252, 260, 264, 270, 276, 280, 286, 288, 300, 306, 308, 312, 320, 324 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A number n is in this sequence iff n is a multiple of some term in A024364. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 Ron Knott, Pythagorean Triples and Online Calculators MAPLE isA010814 := proc(an) local a::integer, b::integer, c::integer ; for c from 1 to floor(an/2) do for a from floor(c/sqrt(2)) to c-1 do if issqr(c^2-a^2) then b := sqrt(c^2-a^2) ; if a+b+c = an then RETURN(true) ; fi ; fi ; od ; od : RETURN(false) ; end : for n from 3 to 400 do if isA010814(n) then printf("%d, ", n) ; fi ; od ; # R. J. Mathar, Jun 08 2006 MATHEMATICA lst={}; Do[Do[If[IntegerQ[c=Sqrt[a^2+b^2]], AppendTo[lst, a+b+c]], {b, a-1, Floor[Sqrt[a]], -1}], {a, 4, 4*5!}]; Take[Union@lst, 100] (* Vladimir Joseph Stephan Orlovsky, Nov 23 2010 *) CROSSREFS Twice A005279. Sequence in context: A289484 A027854 A009096 * A098714 A108938 A085236 Adjacent sequences:  A010811 A010812 A010813 * A010815 A010816 A010817 KEYWORD nonn,easy AUTHOR Ben Manvel (manvel(AT)lagrange.math.colostate.edu) EXTENSIONS More terms from Ray Chandler, Mar 13 2004 STATUS approved

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Last modified September 26 01:25 EDT 2017. Contains 292500 sequences.