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A240408 Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4 1

%I #4 Apr 04 2014 18:18:14

%S 4,32,202,1526,10749,79090,573490,4185321,30488162,222232658,

%T 1619848067,11805053329,86050232733,627116919124,4571009728681,

%U 33313730895602,242812260697701,1769667060944824,12898232020096920,94006154577642335

%N Number of nX3 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

%C Column 3 of A240412

%H R. H. Hardin, <a href="/A240408/b240408.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..3..2..3....2..3..2....2..3..3....2..3..2....3..2..2....2..3..3....3..2..2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2014

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Last modified April 24 12:39 EDT 2024. Contains 371937 sequences. (Running on oeis4.)