cp's OEIS Frontend

A241402 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

%I A241402 #5 Jun 02 2025 10:08:09
%S A241402 15,142,1156,17211,160947,2234804,18589398,134190457,1305599583,
%T A241402 8782028493,85981849830
%N A241402 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.
%C A241402 Row 6 of A241397
%e A241402 Some solutions for n=3
%e A241402 ..2..3..2....3..2..2....2..3..3....2..3..3....2..3..3....3..2..2....3..2..2
%e A241402 ..2..1..0....1..2..0....1..3..2....2..1..2....2..3..2....1..2..0....2..1..0
%e A241402 ..3..0..0....3..2..2....1..2..0....2..0..0....2..0..0....3..2..2....1..3..2
%e A241402 ..3..0..0....1..2..2....3..0..0....2..0..0....1..0..0....1..2..0....1..2..0
%e A241402 ..2..0..0....3..2..0....3..2..0....2..3..3....2..0..0....2..0..0....2..3..2
%e A241402 ..2..3..0....3..0..0....1..0..3....2..3..0....3..0..0....2..3..3....3..1..2
%K A241402 nonn
%O A241402 1,1
%A A241402 _R. H. Hardin_, Apr 20 2014