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 A288026 #7 Feb 16 2025 08:33:47 %S A288026 1,1,1,2,2,2,2,5,5,2,3,11,22,11,3,4,24,75,75,24,4,5,51,264,400,264,51, %T A288026 5,7,109,941,2357,2357,941,109,7,9,234,3286,13407,22228,13407,3286, %U A288026 234,9,12,503,11623,76667,207423,207423,76667,11623,503,12 %N A288026 Array read by antidiagonals: T(m,n) = number of maximal matchings in the grid graph P_m X P_n. %H A288026 Andrew Howroyd, <a href="/A288026/b288026.txt">Table of n, a(n) for n = 1..276</a> %H A288026 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/GridGraph.html">Grid Graph</a> %H A288026 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MaximalIndependentEdgeSet.html">Maximal Independent Edge Set</a> %e A288026 Table starts: %e A288026 ===================================================== %e A288026 m\n| 1 2 3 4 5 6 7 %e A288026 ---|------------------------------------------------- %e A288026 1 | 1 1 2 2 3 4 5 ... %e A288026 2 | 1 2 5 11 24 51 109 ... %e A288026 3 | 2 5 22 75 264 941 3286 ... %e A288026 4 | 2 11 75 400 2357 13407 76667 ... %e A288026 5 | 3 24 264 2357 22228 207423 1922112 ... %e A288026 6 | 4 51 941 13407 207423 3136370 47256485 ... %e A288026 7 | 5 109 3286 76667 1922112 47256485 1158560776 ... %e A288026 ... %Y A288026 Main diagonal is A287595. %Y A288026 Rows 1-3 are A182097(n+2), A286945, A288028. %Y A288026 Cf. A210662, A099390, A286912, A288025. %K A288026 nonn,tabl %O A288026 1,4 %A A288026 _Andrew Howroyd_, Jun 04 2017