cp's OEIS Frontend

A232381 Number of 6Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.

%I A232381 #6 Jul 23 2025 07:22:57
%S A232381 1,3794,292122,14297980,789866870,47301712998,2824295623804,
%T A232381 167360596895808,9942352809180050,591329072696504102,
%U A232381 35169449829022038068,2091545018566304198936,124389459762131184280364
%N A232381 Number of 6Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.
%C A232381 Row 6 of A232376
%H A232381 R. H. Hardin, <a href="/A232381/b232381.txt">Table of n, a(n) for n = 1..210</a>
%e A232381 Some solutions for n=2
%e A232381 ..3..2....3..2....0..2....2..3....2..1....3..2....3..0....0..1....2..3....3..2
%e A232381 ..1..2....1..0....3..1....2..3....0..3....1..2....1..2....2..3....2..1....1..2
%e A232381 ..3..2....3..2....2..1....2..3....2..3....3..2....1..3....2..1....0..3....3..0
%e A232381 ..3..2....1..0....2..3....2..1....2..1....1..0....1..2....2..1....2..1....1..2
%e A232381 ..3..2....3..0....2..1....0..1....0..1....3..0....3..2....2..3....0..1....1..0
%e A232381 ..1..0....1..2....2..3....2..3....2..3....1..2....1..2....2..1....3..2....2..3
%K A232381 nonn
%O A232381 1,2
%A A232381 _R. H. Hardin_, Nov 23 2013