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Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1

%I #4 Feb 21 2018 11:50:27

%S 32,157,253,1974,11263,54005,324797,1859944,10716128,63074571,

%T 368316242,2168021180,12794308839,75376664070,445176250283,

%U 2631502643330,15549915122844,91938532910925,543783543413507,3216228090745002

%N Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A299879.

%H R. H. Hardin, <a href="/A299877/b299877.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A299879.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 21 2018