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A239989 Number of 5Xn 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.

%I A239989 #7 Jun 02 2025 09:36:35
%S A239989 7,40,261,1391,7113,31226,131242,514539,1914507,6772946,22897312,
%T A239989 74168162,230889987,691544987,1994352403,5541664374,14851119427,
%U A239989 38433580993,96194422578,233234971795,548761214881,1255035407604
%N A239989 Number of 5Xn 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 A239989 Row 5 of A239986
%H A239989 R. H. Hardin, <a href="/A239989/b239989.txt">Table of n, a(n) for n = 1..210</a>
%H A239989 R. H. Hardin, <a href="/A239989/a239989.txt">Empirical polynomial of degree 24</a>
%F A239989 Empirical polynomial of degree 24 (see link above)
%e A239989 Some solutions for n=3
%e A239989 ..3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0....3..0..0
%e A239989 ..2..3..3....2..1..0....2..3..0....2..3..3....3..1..3....3..1..3....3..1..3
%e A239989 ..2..0..0....2..0..0....2..0..1....2..0..0....2..1..0....3..1..3....2..1..2
%e A239989 ..3..2..2....3..0..1....3..0..2....3..2..0....3..2..2....2..3..2....3..1..2
%e A239989 ..2..1..0....3..1..2....2..3..0....3..1..2....2..1..0....2..0..0....3..2..2
%K A239989 nonn
%O A239989 1,1
%A A239989 _R. H. Hardin_, Mar 30 2014