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Area of more than one Pythagorean triangle.
4

%I #13 Aug 16 2017 06:56:29

%S 210,840,1320,1890,2730,3360,4914,5250,5280,7560,7980,10290,10920,

%T 11880,13440,17010,18480,19656,21000,21120,24570,25410,29400,30240,

%U 30600,31920,32130,33000,34650,35490,41160,41580,43680,44226,45144,47250,47520,50490

%N Area of more than one Pythagorean triangle.

%C Duplicate numbers in A009111. The number 210 appears twice; 840 appears three times; 341880 appears four times. See A055193 for the sequence - _T. D. Noe_, Oct 14 2013

%H Giovanni Resta, <a href="/A009127/b009127.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A009111.

%K nonn

%O 1,1

%A _David W. Wilson_