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A266059 Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself. 1

%I

%S 1,819,120,41919,27764427,1550545435,117167373425,15587739999833,

%T 1943173605444535,208126602248667993,22518608197762742166,

%U 2535857557129176298847,285358444796155891907361

%N Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.

%C Row 5 of A266055.

%H R. H. Hardin, <a href="/A266059/b266059.txt">Table of n, a(n) for n = 1..164</a>

%e Some solutions for n=4

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

%e ..0..2..3..1....0..4..2..2....0..1..4..0....2..2..4..0....2..1..3..0

%e ..0..4..0..2....0..4..1..1....2..1..3..0....0..3..1..2....1..4..4..1

%e ..0..4..2..0....0..4..2..0....0..4..4..0....0..4..2..2....0..3..0..1

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

%Y Cf. A266055.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 20 2015

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Last modified January 20 18:38 EST 2022. Contains 350472 sequences. (Running on oeis4.)