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 A368073 #6 Feb 16 2025 08:34:06 %S A368073 0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,2,0,0,0,1,0,0,0,0,0, %T A368073 0,1,0,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0, %U A368073 0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1 %N A368073 Number of representations of n as the difference of two positive square pyramidal numbers. %H A368073 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a> %e A368073 a(25) = 2: 25 = 30 - 5 = 55 - 30. %Y A368073 Cf. A000330, A100073, A296338, A368072. %K A368073 nonn %O A368073 1,25 %A A368073 _Ilya Gutkovskiy_, Dec 10 2023