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A317427 Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jul 27 2018 22:02:45

%S 13,105,148,640,2891,9116,32359,125832,439409,1569243,5838001,

%T 20921309,75145761,275012020,993320053,3581537950,13021568490,

%U 47138154809,170339377429,617708630989,2237181582408,8093518693967,29321389145176

%N Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

%C Column 6 of A317429.

%H R. H. Hardin, <a href="/A317427/b317427.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A317429.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jul 27 2018

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)