A298558 - OEIS

%I #4 Jan 21 2018 08:04:12

%S 5,604,3079,19843,138774,983554,6852589,48019258,337105690,2364533628,

%T 16590006949,116460022333,817434984411,5737251249817,40271223099145,

%U 282675763183686,1984158776679139,13927395646417519,97760842271830442

%N Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 6 of A298560.

%H R. H. Hardin, <a href="/A298558/b298558.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298560.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 21 2018