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A298666 Number of nX7 0..1 arrays with every element equal to 0, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 24 2018 10:28:33

%S 1,8,7,13,84,238,978,3895,11843,49752,184380,640323,2550161,9291605,

%T 34411340,132207077,488538547,1844610495,6998077491,26247637676,

%U 99671069188,378042682211,1432299046200,5458358304491,20789207845451

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

%C Column 7 of A298667.

%H R. H. Hardin, <a href="/A298666/b298666.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=8

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

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

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

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

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

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

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

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

%Y Cf. A298667.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 24 2018

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Last modified May 10 22:16 EDT 2024. Contains 372388 sequences. (Running on oeis4.)