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 A180244 #8 Mar 19 2023 08:21:42 %S A180244 5,8,9,12,17,19,21,22,23,25,28,31,32,33,35,37,38,39,42,44,45,46,47,51, %T A180244 52,53,54,55,57,59,60,61,65,66,67,68,69,70,71,72,73,74,75,77,78,79,80, %U A180244 81,82,83,84,85,87,88,89,90,91,93,95,96,97,98,99,100,101,103,105,107 %N A180244 Numbers whose square can be expressed as the sum of a square, a cube and a fourth power of three different numbers. %C A180244 Subset of A180241, containing terms arising from different bases only. %e A180244 a(5)=17 since 17^2 = 289 = 5^2+2^3+4^4 = 12^2+4^3+3^4; (5,2,4) and (12,4,3) are all different. [Corrected by _Bruno Berselli_, Aug 25 2010] %Y A180244 Cf. A180241, A180243. %K A180244 nonn %O A180244 1,1 %A A180244 _Carmine Suriano_, Aug 19 2010