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 A354489 #5 May 29 2022 17:59:44 %S A354489 4,5,6,7,10,11,13,17,19,22,23,26,29,31,34,37,38,39,41,43,46,47,53,55, %T A354489 57,58,59,61,62,65,67,69,71,73,74,79,82,83,85,86,89,92,94,95,97 %N A354489 Widths w of w X h grid rectangles with w > h such that no quadrilaterals with 2 < h < w as defined in A353532 exist, whose angle between their diagonals is equal to the angle between the diagonals of the grid rectangle. %C A354489 The relationship to A353532 is given by the fact that the number of lattice points n X m is used there, while here the side lengths of the lattice rectangle w = n - 1 and h = m - 1 are used. %e A354489 See A354488. %Y A354489 Cf. A353532, A354488 for more information. %Y A354489 There are many common terms with A325160. %K A354489 nonn,more %O A354489 1,1 %A A354489 _Hugo Pfoertner_ and _Rainer Rosenthal_, May 28 2022