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 A245616 #42 Feb 11 2016 12:29:28 %S A245616 44,117,240,240,252,275,88,234,480,85,132,720,160,231,792,132,351,720, %T A245616 480,504,550,176,468,960,170,264,1440,220,585,1200,720,756,825,320, %U A245616 462,1584,264,702,1440,308,819,1680,255,396,2160,960,1008,1100,352,936,1920,480,693,2376,396,1053,2160,429,880,2340,340,528,2880 %N A245616 Pythagorean Threesomes: triples of natural numbers defining the six legs of three Pythagorean triangles. %C A245616 The sequence is sorted by increasing sums of triples and secondly by increasing order of first term. %C A245616 The three numbers in a Pythagorean Threesome define the lengths of three sides of a tetrahedron with all integer length edges and one right angle vertex. %C A245616 The sequence was calculated for the science fiction novel "The Fifth Jack" by Andreas Boe, Amazon books, 2014. %C A245616 I do not have that book, but this sequence is closely related to (and may be an erroneous version of) A268396. - _Arkadiusz Wesolowski_, Feb 03 2016 %H A245616 Andreas Boe, <a href="/A245616/b245616.txt">Table of n, a(n) for n = 1..285</a> %F A245616 x,y,sqrt(x^2+y^2) y,z,sqrt(y^2+z^2) z,x,sqrt(z^2+x^2) %e A245616 (44,117,240) sqrt(44^2+117^2)=125 sqrt(117^2+240^2)=267 sqrt(240^2+44^2)=244 %Y A245616 Same numbers sorted gives A195816. %Y A245616 Cf. A268396. %K A245616 nonn %O A245616 1,1 %A A245616 _Andreas Boe_, Nov 05 2014 %E A245616 Edited by _N. J. A. Sloane_, Feb 11 2016