A300029 - OEIS

%I #4 Feb 23 2018 08:19:46

%S 21,203,129,2466,30072,153289,1841903,19059670,151628931,1608282486,

%T 15916306276,144533905546,1451676564506,14214967754822,

%U 134895783401363,1327924864310213,12957080978763668,124947115339353318

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A300030.

%H R. H. Hardin, <a href="/A300029/b300029.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300030.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 23 2018