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 A385232 #28 Jul 04 2025 19:21:15
%S A385232 17,31,32,57,100,145,177,260,283,320,368,593,945,1124,1649,2169,2530,
%T A385232 3129,3152,3381,4240,5392,7073,8361,16580,18785,20412,23401,32993,
%U A385232 46660,46683,46912,49781,60049,65792,69632,94932,131361,178478,262468,268705,397585,423393,524649,533169,823547,823570
%N A385232 Numbers that can be written as s^x + t^y, with 1 < s < t and {s,t} = {x,y}; that is, are of the form s^s + t^t or s^t + t^s.
%H A385232 David A. Corneth, <a href="/A385232/b385232.txt">Table of n, a(n) for n = 1..10000</a>
%e A385232 a(1) = 2^3 + 3^2 = 8 + 9 = 17.
%e A385232 a(2) = 2^2 + 3^3 = 4 + 27 = 31.
%e A385232 a(3) = 2^4 + 4^2 = 16 + 16 = 32.
%e A385232 a(4) = 2^5 + 5^2 = 32 + 25 = 57.
%Y A385232 Cf. A000312, A001597, A385233 (three addends).
%Y A385232 Union of A173054 and A385614.
%K A385232 nonn,easy
%O A385232 1,1
%A A385232 _Alberto Zanoni_, Jun 28 2025