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A239153 Number of (n+1)X(4+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.

%I A239153 #6 Jul 23 2025 10:57:32
%S A239153 24,24,12159,135766,12844591,330311070,18120156500,629468400383,
%T A239153 28646802159654,1108832844851022,47257467282260746,
%U A239153 1901383445656471050,79172996011297669608,3229805113653824580575,133380680053667604594194
%N A239153 Number of (n+1)X(4+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
%C A239153 Column 4 of A239155
%H A239153 R. H. Hardin, <a href="/A239153/b239153.txt">Table of n, a(n) for n = 1..55</a>
%e A239153 Some solutions for n=4
%e A239153 ..0..1..2..0..3....0..1..0..2..1....0..1..0..1..0....0..1..0..2..3
%e A239153 ..0..1..2..0..3....0..1..0..2..1....0..1..0..1..0....0..1..0..2..3
%e A239153 ..0..2..0..0..3....1..2..0..2..3....2..1..2..1..0....2..1..0..2..3
%e A239153 ..3..2..0..2..3....1..2..0..2..3....2..1..2..2..0....2..0..1..0..3
%e A239153 ..3..2..0..2..3....1..2..0..2..3....2..1..2..2..0....2..0..1..0..3
%K A239153 nonn
%O A239153 1,1
%A A239153 _R. H. Hardin_, Mar 11 2014