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A267915 Number of 4Xn 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.

%I A267915 #4 Jan 22 2016 08:03:59
%S A267915 13,938,43972,2331981,104491831,4817531571,207508204575,8960112001163,
%T A267915 375426257575299,15673406360156331,644971612069289479,
%U A267915 26434347183210422659,1075438596218448452443,43616300555346348016639
%N A267915 Number of 4Xn 0..2 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.
%C A267915 Row 4 of A267911.
%H A267915 R. H. Hardin, <a href="/A267915/b267915.txt">Table of n, a(n) for n = 1..151</a>
%e A267915 Some solutions for n=3
%e A267915 ..0..0..1....0..1..0....0..0..1....0..1..0....0..1..0....0..1..2....0..1..2
%e A267915 ..1..2..0....0..2..0....2..1..2....0..0..1....0..2..0....2..2..1....2..0..0
%e A267915 ..0..2..2....1..1..0....0..2..1....2..0..2....0..0..2....0..1..2....1..0..0
%e A267915 ..0..1..0....2..2..1....0..1..2....1..0..2....2..1..1....0..1..0....2..1..1
%Y A267915 Cf. A267911.
%K A267915 nonn
%O A267915 1,1
%A A267915 _R. H. Hardin_, Jan 22 2016