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A266065 Number of nX5 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors exactly one smaller than itself. 1

%I

%S 9,323,809,8262,154939,1066148,11753249,164649556,1624261580,

%T 18538981257,229469667714,2536359623435,29278580961556,

%U 347292039035416,3973004685343895,46045222804587434,538477979319956709

%N Number of nX5 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors exactly one smaller than itself.

%C Column 5 of A266067.

%H R. H. Hardin, <a href="/A266065/b266065.txt">Table of n, a(n) for n = 1..65</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A266067.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 20 2015

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Last modified August 9 09:14 EDT 2022. Contains 356021 sequences. (Running on oeis4.)