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A316958 Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 17 2018 12:32:08

%S 32,2048,70037,2232443,73529753,2402722112,78728223139,2579211359302,

%T 84510945441118,2769379871022869,90752404534035886,

%U 2974040061250572520,97462565463918203139,3193977765691405753182,104671123666176410585811

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A316960.

%H R. H. Hardin, <a href="/A316958/b316958.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A316960.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 17 2018

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Last modified February 28 02:26 EST 2024. Contains 370379 sequences. (Running on oeis4.)