A300266 - OEIS

%I #4 Mar 01 2018 07:57:20

%S 64,3440,25034,412094,12622937,298472434,6717267728,162737578821,

%T 3942079842968,94361285192110,2267096616986688,54573852949272578,

%U 1312484927351655626,31563343981991328303,759236121487442954159

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A300267.

%H R. H. Hardin, <a href="/A300266/b300266.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300267.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 01 2018