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A317270 Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I

%S 1,908,3302,111073,2915690,52389467,1396521994,32539573668,

%T 748729425556,18093921657774,426211079158160,10085719543230970,

%U 239658702945504336,5674853493859268462,134548196406117591102,3190426160734830130858

%N Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A317271.

%H R. H. Hardin, <a href="/A317270/b317270.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317271.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jul 25 2018

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Last modified October 1 14:19 EDT 2022. Contains 357149 sequences. (Running on oeis4.)