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 A365620 #25 Sep 25 2023 08:55:42 %S A365620 4,12,20,36,60,108,180,252,324,540,756,972,1620,2268,2916,4860,6804, %T A365620 8748,14580,20412,26244,43740,61236,72900,78732,102060,131220,183708, %U A365620 218700,236196,306180,393660,551124,656100,708588,918540 %N A365620 Number of integer grid points on the circle around (0,0) with radius A088959(n). %F A365620 a(n) = 8*A088111(n) + 4. %Y A365620 Sequence of records of A046109 (first term 1 from A046109 is omitted). %Y A365620 See A071385 for radii that are not necessarily integers. %K A365620 nonn %O A365620 1,1 %A A365620 _Günter Rote_, Sep 12 2023