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Number of length n+4 0..3 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms
1

%I #6 Feb 05 2015 21:06:40

%S 464,1116,2764,6808,16276,37204,87892,211672,512684,1241154,2987260,

%T 7209620,17496932,42616826,103975836,253892100,620762656,1520766742,

%U 3732847376,9175497666,22579411156,55623783944,137178824664,338676930240

%N Number of length n+4 0..3 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms

%C Column 3 of A254698

%H R. H. Hardin, <a href="/A254693/b254693.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A254693/a254693.txt">Empirical recurrence of order 83</a>

%F Empirical recurrence of order 83 (see link above)

%e Some solutions for n=7

%e ..1....2....1....2....0....3....0....3....1....1....1....3....1....0....3....3

%e ..0....0....3....3....3....1....0....0....2....1....1....0....2....0....1....2

%e ..1....2....0....1....1....0....3....0....0....3....2....0....1....3....2....1

%e ..1....3....1....0....1....0....0....3....1....2....2....0....2....0....1....2

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

%e ..1....3....2....1....1....0....2....0....1....0....1....2....0....3....3....2

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

%e ..0....2....0....1....1....3....0....0....1....3....3....0....2....2....1....3

%e ..1....2....1....3....1....1....1....2....3....1....1....0....1....0....1....1

%e ..3....0....1....0....3....0....0....0....0....3....1....0....3....0....2....2

%e ..2....3....1....1....1....0....2....0....3....1....0....0....1....0....3....3

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 05 2015