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 A014158 #10 Jul 08 2025 02:53:37 %S A014158 13,20,25,32,39,40,51,58,59,62,76,77,81,84,88,89,95,96,98,102,103,104, %T A014158 111,115,116,123,124,151,160,165,166,168,175,176,186,193,202,205,209, %U A014158 213,214,215,221,228,229,241,242,263,268,270,273,287,289,291,293,306,310,312 %N A014158 Numbers that are not the sum of 2 cubes and a triangular number. %Y A014158 Cf. A014157 (complement). %K A014158 nonn %O A014158 1,1 %A A014158 _N. J. A. Sloane_