A300922 - OEIS

%I #4 Mar 15 2018 18:51:17

%S 1,304,5160,224767,8265835,340365586,13715723327,560932609225,

%T 22881004568048,935477482098150,38230695664365356,1562893013715392478,

%U 63887739349054144930,2611714583994197727657,106765154994098448490632

%N Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A300923.

%H R. H. Hardin, <a href="/A300922/b300922.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300923.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 15 2018