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 A385611 #18 Jul 08 2025 22:11:20
%S A385611 202,245,254,322,340,348,377,383,400,422,460,465,468,532,545,548,568,
%T A385611 603,628,688,700,730,736,738,739,845,865,876,892,922,936,961,977,1002,
%U A385611 1029,1033,1036,1092,1122,1138,1174,1205,1234,1236,1265,1269,1338,1403,1407,1433
%N A385611 Numbers that can be written as s^w + t^x + u^y + v^z with 1 < s < t < u and {s,t,u,v} = {w,x,y,z} (the sequence of exponents can be any permutation of s,t,u,v).
%e A385611 202 = 2^5 + 3^4 + 4^3 + 5^2.
%e A385611 628 = 2^2 + 3^5 + 4^4 + 5^3.
%e A385611 936 = 2^2 + 3^5 + 4^3 + 5^4.
%e A385611 1234 = 2^2 + 3^4 + 4^5 + 5^3.
%Y A385611 Cf. A001597, A385232, A385233.
%K A385611 nonn
%O A385611 1,1
%A A385611 _Jean-Marc Rebert_, Jul 04 2025