cp's OEIS Frontend

A240758 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.

%I A240758 #6 Jun 02 2025 09:59:19
%S A240758 25,42,142,348,653,1809,3606,8307,20609,42658,103913,235174,519261,
%T A240758 1234747,2728224,6283093,14453348,32323190,74859774,169422762,
%U A240758 385308220,885034945,2001772191,4581389621,10446058187,23735064262,54294354277
%N A240758 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4.
%C A240758 Column 4 of A240760
%H A240758 R. H. Hardin, <a href="/A240758/b240758.txt">Table of n, a(n) for n = 1..210</a>
%e A240758 Some solutions for n=4
%e A240758 ..3..3..1..1....2..2..2..2....2..2..2..2....3..3..1..1....3..3..2..3
%e A240758 ..2..0..2..3....3..1..3..3....3..1..3..1....2..0..2..3....2..0..1..1
%e A240758 ..2..0..2..3....2..2..2..2....2..0..2..2....3..1..0..3....3..1..0..3
%e A240758 ..2..0..0..2....2..0..0..2....2..1..1..3....3..1..2..1....3..2..0..1
%K A240758 nonn
%O A240758 1,1
%A A240758 _R. H. Hardin_, Apr 12 2014