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 A270579 #9 Aug 27 2024 15:02:45 %S A270579 13,145,1237,4813,19225,42901,119725,233065,475609 %N A270579 The number of sets of parallel planes into which the planes defined in A270578 fall. %e A270579 The 20 planes defined by the points of the 2 X 2 X 2 grid fall into 13 families of parallel planes: 3 parallel to the faces, 4 perpendicular to the space diagonals and 6 which are the planes defined by an edge and its opposite edge. So a(2)=13. %Y A270579 Cf. A222267, A270578. %K A270579 nonn,more %O A270579 2,1 %A A270579 _Clive Tooth_, Mar 19 2016