A302306 - OEIS

%I #4 Apr 05 2018 09:36:21

%S 8,31,48,194,445,1271,3915,12420,42897,158170,605532,2395817,9709409,

%T 39880121,165585758,693033415,2914777618,12305134022,52090542883,

%U 220906709231,938079788895,3987432050368,16960357014483,72175348991290

%N Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A302309.

%H R. H. Hardin, <a href="/A302306/b302306.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302309.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 05 2018