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A239411 Number of 7 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4. 1

%I

%S 368,113774,32507376,9402398952,2671846338458,765206237815409,

%T 217822754771248124,62224253930396430225,17732860047914475927901,

%U 5061141668045083629968143,1443095146623473513048203207

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

%C Row 7 of A239405.

%H R. H. Hardin, <a href="/A239411/b239411.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

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

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

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

%Y Cf. A239405.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2014

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Last modified October 19 16:25 EDT 2021. Contains 348091 sequences. (Running on oeis4.)