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 A357022 #4 Sep 10 2022 07:35:02 %S A357022 0,0,1,0,1,0,2,1,0,2,1,0,3,2,1,0,3,2,1,4,0,3,2,1,4,3,0,2,1,5,4,3,0,2, %T A357022 1,5,4,3,0,2,6,5,1,4,3,0,2,6,5,1,4,3,0,2,7,6,5,4,1,3,0,7,6,2,5,4,1,3, %U A357022 8,7,0,6,2,5,4,1,3,8,7,6,0,2,5,4,1,9,8,3 %N A357022 Second coordinate y of points in the triangular lattice, sorted first by the distance from the origin and then by the circumferential angle phi restricted to the sector 0 <= phi < Pi/6. x is given in A357021. %C A357022 See A357021 for more information. %Y A357022 Cf. A357021. %K A357022 nonn %O A357022 1,7 %A A357022 _Hugo Pfoertner_, Sep 10 2022