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 A382758 #4 Apr 06 2025 15:04:26 %S A382758 0,0,0,1,0,1,2,3,0,1,2,3,3,2,3,4,4,5,6,0,1,2,3,4,3,2,3,4,3,4,5,4,5,4, %T A382758 5,5,6,6,7,6,4,5,6,7,6,5,6,7,7,8,8,9,10,0,1,2,3,4,5,3,2,3,4,3,4,5,4,5, %U A382758 6,4,5,4,5,5,6,4,5,5,6,6,7,6,7,6,7,7,8 %N A382758 Number of edges of the graph encoded by A382754(n). %F A382758 a(n) = A000120(A382754(n))-1 for n >= 1. %e A382758 As an irregular triangle, where row n >= 0 contains A000088(n) terms: %e A382758 0; %e A382758 0; %e A382758 0, 1; %e A382758 0, 1, 2, 3; %e A382758 0, 1, 2, 3, 3, 2, 3, 4, 4, 5, 6; %e A382758 ... %Y A382758 Cf. A000088, A000120, A382191, A382754. %K A382758 nonn,tabf %O A382758 0,7 %A A382758 _Pontus von Brömssen_, Apr 04 2025