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A299674 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Feb 16 2018 07:25:40

%S 64,3440,24742,398314,11202963,231836591,4670821739,105367758168,

%T 2312626806147,49903237571207,1093149465726227,23941420834407258,

%U 522411221709363461,11416996744177960798,249638866653905808917

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

%C Column 7 of A299675.

%H R. H. Hardin, <a href="/A299674/b299674.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299675.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 16 2018

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)