A300027 - OEIS

%I #4 Feb 23 2018 08:18:17

%S 8,34,19,220,1637,4320,30072,206967,903664,5528305,33865076,178421588,

%T 1041376007,6119845720,34193886672,197233778418,1141888439215,

%U 6502450589845,37394525903413,215421948327015,1234270970196951

%N Number of nX5 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 5 of A300030.

%H R. H. Hardin, <a href="/A300027/b300027.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300030.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 23 2018