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 A228875 #9 Jan 05 2025 19:51:40 %S A228875 24,30,54,60,210,216,330,336,480,486,540,546,720,726,750,756,1344, %T A228875 1350,1710,1716,2160,2166,8664,8670,8970,8976,10080,10086,10290,10296, %U A228875 12144,12150,15600,15606,18144,18150,24570,24576,28560,28566,30240,30246,34650,34656 %N A228875 Pairs of Pythagorean numbers differing by 6. %C A228875 These are pairs of terms of A009111 differing by 6 -- the least amount possible. Mohanty and Mohanty call these twin Pythagorean numbers. In Theorem 9, they prove that there are an infinite number of these numbers. %H A228875 Supriya Mohanty and S. P. Mohanty, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/28-1/mohanty.pdf">Pythagorean Numbers</a>, Fibonacci Quarterly 28 (1990), 31-42. %Y A228875 Cf. A009111 (Pythagorean numbers). %Y A228875 Cf. A228876, A228877 (upper and lower Pythagorean twins). %K A228875 nonn %O A228875 1,1 %A A228875 _T. D. Noe_, Sep 24 2013