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 A369999 #5 Feb 09 2024 08:43:47 %S A369999 1,2,1,4,4,4,1,8,12,24,38,48,28,8,1,16,32,96,280,784,1952,4304,7280, %T A369999 8720,7136,4192,1804,560,120,16,1 %N A369999 Irregular triangle read by rows: T(n,k) is the number of connected induced k-vertex subgraphs of the hypercube graph of dimension n >= 0, 1 <= k <= 2^n. %e A369999 Triangle begins: %e A369999 1; %e A369999 2, 1; %e A369999 4, 4, 4, 1; %e A369999 8, 12, 24, 38, 48, 28, 8, 1; %e A369999 16, 32, 96, 280, 784, 1952, 4304, 7280, 8720, 7136, 4192, 1804, 560, 120, 16, 1; %e A369999 ... %Y A369999 Cf. A290758 (row sums), A369605 (up to automorphisms of the hypercube), A369997 (up to isomorphism). %K A369999 nonn,tabf,more %O A369999 0,2 %A A369999 _Pontus von Brömssen_, Feb 07 2024