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 A382191 #6 Mar 21 2025 09:46:30 %S A382191 0,1,2,3,3,2,3,4,4,5,6,4,3,4,5,4,5,5,6,4,5,6,7,6,7,6,5,6,7,7,8,8,9,10, %T A382191 5,4,5,6,4,5,5,6,6,7,5,6,7,8,6,7,3,4,5,6,5,6,5,6,6,7,7,8,7,8,7,6,7,8, %U A382191 6,7,7,8,8,9,5,6,7,6,7,8,7,8,7,8,9,9,8 %N A382191 Number of edges of the graph with code A076184(n). %F A382191 a(n) = A000120(A076184(n)). %e A382191 As an irregular triangle, where the first row contains 1 term and row n >= 2 contains A002494(n) terms: %e A382191 0; %e A382191 1; %e A382191 2, 3; %e A382191 3, 2, 3, 4, 4, 5, 6; %e A382191 4, 3, 4, 5, 4, 5, 5, 6, 4, 5, 6, 7, 6, 7, 6, 5, 6, 7, 7, 8, 8, 9, 10; %e A382191 ... %Y A382191 Cf. A000120, A002494, A076184. %K A382191 nonn,tabf %O A382191 1,3 %A A382191 _Pontus von Brömssen_, Mar 18 2025