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 A240417 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4 1

%I #4 Apr 04 2014 18:23:55

%S 129,2105,79090,2051450,45245148,1615637679,38249442962,955439201951,

%T 28422088797325,653249891295733,18365583086851745,495763997190145130,

%U 12117652634246661607,341107664098435880768,8779799870508201530267

%N Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4

%C Row 6 of A240412

%H R. H. Hardin, <a href="/A240417/b240417.txt">Table of n, a(n) for n = 1..17</a>

%e Some solutions for n=3

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2014

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Last modified June 4 13:02 EDT 2023. Contains 363128 sequences. (Running on oeis4.)