%I #11 Aug 12 2015 00:36:41

%S 47125,279225,354061,549181,672409,1626409,3349125,5504500,6186250,

%T 29811609,32035636,36082909,66280609,178651252,265364325,379845684,

%U 380287441,380367010,385371234,420373045,526535109,622542601,654992101,1065369601,1298353716,1339962850

%N Numbers expressible as sum of squares of two distinct positive triangular numbers exactly in two ways.

%C Are there numbers expressible as T(m)^2 + T(n)^2 in exactly 3 (and more?) ways?

%H Zak Seidov, <a href="/A212842/b212842.txt">Table of n, a(n) for n = 1..130</a>

%e 47125 = T(14)^2 + T(19)^2 = 105^2 + 190^2, and

%e 47125 = T(10)^2 + T(20)^2 = 55^2 + 210^2.

%Y Inspired by A212795.

%K nonn

%O 1,1

%A _Zak Seidov_, May 28 2012