A268016 - OEIS

%I #4 Jan 24 2016 09:55:25

%S 78,6084,474552,31831908,2012075697,119453097281,6761580343329,

%T 367501986337710,19300005472710895,983989084426524929,

%U 48888960624425750151,2374418848334124952354,113014440791056538695922

%N Number of nX4 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

%C Column 4 of A268019.

%H R. H. Hardin, <a href="/A268016/b268016.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2..1..0..0....2..1..2..1....0..2..2..2....2..1..1..1....0..2..1..1

%e ..2..1..0..2....0..1..0..2....1..0..2..1....2..0..2..2....2..0..1..1

%Y Cf. A268019.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 24 2016