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Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1

%I #4 Jan 19 2018 08:37:05

%S 1,88,46,2459,22133,255029,4095727,62979342,804773211,12648714013,

%T 192361297807,2716340306952,40926079823971,617074882316209,

%U 9000146595771759,134050098579479340,2005238499337491454

%N Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 6 of A298454.

%H R. H. Hardin, <a href="/A298452/b298452.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A298454.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 19 2018