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 A329072 #11 Feb 16 2025 08:33:58 %S A329072 0,1,6,7,19,25,26,44,63,69,70,85,129,146,148,154,155,231,275,294,300, %T A329072 301,344,377,462,489,506,525,531,532,575,670,721,806,833,850,869,875, %U A329072 876,891,1064,1156,1159,1210,1295,1339,1358,1364,1365,1469,1503,1561,1734 %N A329072 Numbers that are sums of consecutive octahedral numbers (A005900). %H A329072 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/OctahedralNumber.html">Octahedral Number</a> %Y A329072 Cf. A005900, A006325, A217843, A322468, A322479, A329597, A329599. %K A329072 nonn %O A329072 1,3 %A A329072 _Ilya Gutkovskiy_, Nov 18 2019