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Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1

%I #4 Feb 28 2018 14:22:11

%S 64,8192,629440,54246856,4666136435,402932952786,34824178698922,

%T 3010162276020151,260210978826555172,22494096787493774522,

%U 1944522379136741443363,168096182839942928684790

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A300215.

%H R. H. Hardin, <a href="/A300214/b300214.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300215.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 28 2018