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Number of nX7 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
1

%I #4 Feb 06 2018 13:48:41

%S 1,22,434,1557,38035,473924,7885194,132676384,2249698337,39854864168,

%T 700615705103,12435929820498,221099245989227,3935763610862580,

%U 70136675735762945,1250168095233297669,22291499935243883463

%N Number of nX7 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299321.

%H R. H. Hardin, <a href="/A299320/b299320.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299321.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 06 2018