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 A374168 #31 Feb 16 2025 08:34:07 %S A374168 2,60,9692375 %N A374168 a(n) is the smallest number which can be represented as the sum of two nonzero square pyramidal numbers in exactly n ways, or -1 if no such number exists. %C A374168 There are no further positive terms <= 10^15. - _Michael S. Branicky_, Jul 01 2024 %H A374168 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a>. %e A374168 a(2) = 60 = 5 + 55 = 30 + 30. %Y A374168 Cf. A000330, A011541, A016032, A334013, A374193, A374194. %K A374168 nonn,hard,bref,more %O A374168 1,1 %A A374168 _Ilya Gutkovskiy_, Jun 30 2024