A302072 - OEIS

%I #4 Mar 31 2018 15:47:27

%S 16,512,5296,67070,807601,9825815,119508742,1452315793,17661727848,

%T 214818317017,2613377675631,31794933035645,386831554680657,

%U 4706379266471703,57260098009925842,696654234944188198

%N Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

%C Row 5 of A302069.

%H R. H. Hardin, <a href="/A302072/b302072.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302069.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 31 2018