A300369 - OEIS

%I #4 Mar 04 2018 09:08:07

%S 0,3,3,4,32,92,270,1262,3561,13976,48859,173602,622502,2233811,

%T 7882027,28343929,100832747,360076171,1284751998,4584944102,

%U 16356781324,58381988677,208293028674,743376640816,2652427350327,9465170814378

%N Number of nX5 0..1 arrays with every element equal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A300372.

%H R. H. Hardin, <a href="/A300369/b300369.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300372.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 04 2018