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 A072096 #11 Sep 04 2024 12:57:52 %S A072096 24,43,63,89,100,101,102,103,104,105,106,107,108,109,132,135,142,153, %T A072096 175,209,224,226,254,257,258,262,263,264,267,283,284,308,332,333,334, %U A072096 347,357,370,371,372,373,374,375,376,377,378,379,407,445,463,472,518 %N A072096 Energetic numbers, allowing zero as an exponent. %C A072096 Numbers that can be broken into two or more substrings and expressed as a sum of (possibly different) nonnegative powers of those substrings. %C A072096 254 = 2^7 + 5^3 + 4^0 is the first element requiring a zero exponent. %H A072096 Henk Koppelaar, Peyman Nasehpour, and Maarten Looijen, <a href="https://doi.org/10.20944/preprints202408.2107.v1">Symmetry between Series if Entangled by Sums</a>, Preprints.org, 2024. %e A072096 142 = 14^1 + 2^7, 8833 = 88^2 + 33^2. %Y A072096 Cf. A055480. %K A072096 nonn,base %O A072096 1,1 %A A072096 _David W. Wilson_, Jan 29 2003