A239404 - OEIS

%I #6 Jun 02 2025 09:27:40

%S 128,44399,15591122,5277728354,1820591502437,630657074443394,

%T 217822754771248124,75263099558825967756,26030827849718972763027,

%U 9004105241933423695032678,3114444338059091764373199789

%N Number of nX7 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it, modulo 4.

%C Column 7 of A239405

%H R. H. Hardin, <a href="/A239404/b239404.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 17 2014