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A201725 Number of nX4 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself 1

%I #5 Mar 31 2012 12:36:45

%S 35,3567,499474,56836178,4720850001,299927801278,15249209002599,

%T 640855702702745,22831719167592564,703807755707555744,

%U 19083627099219491070,461269189538111185232,10047567066462239739922

%N Number of nX4 0..4 arrays with rows and columns lexicographically nondecreasing and no element equal to the number of horizontal and vertical neighbors equal to itself

%C Column 4 of A201729

%H R. H. Hardin, <a href="/A201725/b201725.txt">Table of n, a(n) for n = 1..120</a>

%e Some solutions for n=2

%e ..0..0..4..4....0..2..3..4....0..0..0..3....0..0..3..3....1..3..3..4

%e ..1..2..2..3....0..3..0..0....0..2..3..1....1..4..2..2....4..0..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 04 2011

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Last modified May 2 21:21 EDT 2024. Contains 372203 sequences. (Running on oeis4.)