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%I #15 Nov 16 2023 19:01:26
%S 2,6,9,18,54,99,216,512,1079,2352,5225,11383,24991,54814,120126,
%T 263554,577644,1266485,2777763,6089610,13352283,29278137,64194490,
%U 140755609,308628427,676706615,1483775356,3253378624,7133479611,15641147936,34295353874,75197276962
%N Number of maximal irredundant sets in the n-ladder graph.
%H Christian Sievers, <a href="/A291100/b291100.txt">Table of n, a(n) for n = 1..200</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/LadderGraph.html">Ladder Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MaximalIrredundantSet.html">Maximal Irredundant Set</a>
%K nonn
%O 1,1
%A _Eric W. Weisstein_, Aug 17 2017
%E a(13) = 24991 from _Eric W. Weisstein_, Feb 16 2018
%E a(14) = 54814 from _Eric W. Weisstein_, Mar 20 2022
%E More terms from _Christian Sievers_, Nov 16 2023