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 A239991 Number of 7 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4. 1

%I

%S 15,208,4113,70107,1174822,16721012,226886115,2823199343,33074332722,

%T 366468588411,3862531765288,38827887664460,374132975836928,

%U 3462018008021025,30769710869286232,262533007814160639

%N Number of 7 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.

%C Row 7 of A239986.

%H R. H. Hardin, <a href="/A239991/b239991.txt">Table of n, a(n) for n = 1..53</a>

%e Some solutions for n=3:

%e ..3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 30 2014

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Last modified May 25 05:45 EDT 2022. Contains 354048 sequences. (Running on oeis4.)