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A240268 Number of nX4 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 one plus the sum of the elements diagonally to its northwest, modulo 4 1

%I #4 Apr 03 2014 09:40:53

%S 24,157,919,8265,49921,382690,3076452,19781372,154994425,1144262410,

%T 7794166168,60672207307,432430357219,3074960725990,23390892029200,

%U 165455143739679,1206985642463001,8980338421458244,63888419650679414

%N Number of nX4 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 one plus the sum of the elements diagonally to its northwest, modulo 4

%C Column 4 of A240271

%H R. H. Hardin, <a href="/A240268/b240268.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 03 2014

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Last modified April 16 18:51 EDT 2024. Contains 371750 sequences. (Running on oeis4.)