A303245 - OEIS

%I #4 Apr 20 2018 10:57:57

%S 16,6,181,61,1106,1373,11111,38480,221943,1162591,6612354,37797923,

%T 222063807,1285446882,7608314073,44383042633,261786226112,

%U 1535739151907,9031702593457,53103496045060,312053768598165,1835371700840177

%N Number of 5Xn 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 5 of A303242.

%H R. H. Hardin, <a href="/A303245/b303245.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303242.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 20 2018