A300173 - OEIS

%I #4 Feb 27 2018 12:18:36

%S 0,41,932,23522,886940,30129628,1068913988,37795185266,1339340557254,

%T 47515355206475,1685877049306746,59829998749240513,

%U 2123405993462787013,75363618898063174610,2674832296742845190030,94936648715702653859799

%N Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A300175.

%H R. H. Hardin, <a href="/A300173/b300173.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300175.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 27 2018