This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A235990 #9 Jan 21 2014 10:13:01 %S A235990 104,204,348,480,488,492,600,732,936,1248,1356,1360,1440,1448,1644, %T A235990 1788,2000,2172,2196,2700,2784,2824,3060,3084,3228,3360,3368,3372, %U A235990 3552,3712,3744,3816,3924,4080,4240,4392,4500,4500,4812,5052,5088,5220,5280,5856,6000 %N A235990 Consider all Pythagorean triples (X,Y,Z) consisting of refactorable numbers (A033950) only, ordered by increasing Z. This sequence gives the values of Z. %e A235990 104^2 = 40^2 + 96^2, i.e. A033950(17)^2 = A033950(9)^2 + A033950(16)^2. %Y A235990 Cf. A033950, A009000, A046083, A046084. %K A235990 nonn %O A235990 1,1 %A A235990 _Ivan N. Ianakiev_, Jan 18 2014 %E A235990 More terms from _Michel Marcus_, Jan 21 2014