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 A291100 #16 Feb 16 2025 08:33:50 %S A291100 2,6,9,18,54,99,216,512,1079,2352,5225,11383,24991,54814,120126, %T A291100 263554,577644,1266485,2777763,6089610,13352283,29278137,64194490, %U A291100 140755609,308628427,676706615,1483775356,3253378624,7133479611,15641147936,34295353874,75197276962 %N A291100 Number of maximal irredundant sets in the n-ladder graph. %H A291100 Christian Sievers, <a href="/A291100/b291100.txt">Table of n, a(n) for n = 1..200</a> %H A291100 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/LadderGraph.html">Ladder Graph</a> %H A291100 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MaximalIrredundantSet.html">Maximal Irredundant Set</a> %K A291100 nonn %O A291100 1,1 %A A291100 _Eric W. Weisstein_, Aug 17 2017 %E A291100 a(13) = 24991 from _Eric W. Weisstein_, Feb 16 2018 %E A291100 a(14) = 54814 from _Eric W. Weisstein_, Mar 20 2022 %E A291100 More terms from _Christian Sievers_, Nov 16 2023