A299141 - OEIS

%I #4 Feb 03 2018 09:32:45

%S 8,3336,298361,23808476,1958821107,161617794805,13311860331263,

%T 1096571119921011,90332592148780928,7441355378176877032,

%U 612998553731816949526,50497150303834130394009,4159817600706531428357054

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299142.

%H R. H. Hardin, <a href="/A299141/b299141.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299142.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 03 2018