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A057228 a(n)=a*b=x*y with (a-b)=(x+y)=A009000(n) (a>b,a>0,b>0,x>0,y>0). 0


%S 6,24,30,54,60,96,84,150,120,210,216,240,294,210,270,384,180,486,336,

%T 600,540,480,630,726,840,864,330,504,750,924,1014,960,1176,1320,840,

%U 756,1350,1080,1536,720,546,1386,1500,1734,1890,1560,1944,1470,2166

%N a(n)=a*b=x*y with (a-b)=(x+y)=A009000(n) (a>b,a>0,b>0,x>0,y>0).

%C Areas of Pythagorean triangles.

%e E.g. a(1)=6=6*1=3*2, (6- 1)=(3+2)=5=A009000(1)

%Y Cf. A009000, A009003, A009111, A009112.

%K nonn

%O 0,1

%A _Naohiro Nomoto_, Sep 19 2000

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Last modified May 27 03:56 EDT 2017. Contains 287189 sequences.