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A223061 Number of nX7 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order.

%I A223061 #6 Jul 23 2025 03:26:48
%S A223061 715,3361024,18142309235,99653055754459,549172612438350029,
%T A223061 3028264612325675509047,16700483735732492103987445,
%U A223061 92103002955687502077421475679,507949261500434438520234512887781
%N A223061 Number of nX7 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order.
%C A223061 Column 7 of A223062
%H A223061 R. H. Hardin, <a href="/A223061/b223061.txt">Table of n, a(n) for n = 1..25</a>
%e A223061 Some solutions for n=3
%e A223061 ..0..0..0..1..1..0..2....0..0..0..1..0..0..1....0..0..0..1..0..2..1
%e A223061 ..1..1..1..0..3..2..3....1..1..1..0..2..3..2....1..1..1..0..3..2..3
%e A223061 ..0..0..0..1..1..0..1....0..0..0..2..3..2..1....0..0..0..2..0..1..0
%K A223061 nonn
%O A223061 1,1
%A A223061 _R. H. Hardin_ Mar 13 2013