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A298258 Number of nX7 0..1 arrays with every element equal to 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 15 2018 14:59:24

%S 0,34,14,201,604,3335,13991,70095,331341,1644480,8037526,39760955,

%T 194961246,961041475,4728481549,23295012230,114728093511,565337326343,

%U 2784889510658,13721663522023,67604705716170,333094024429888

%N Number of nX7 0..1 arrays with every element equal to 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

%C Column 7 of A298259.

%H R. H. Hardin, <a href="/A298258/b298258.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=8

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

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

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

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

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

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

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

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

%Y Cf. A298259.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 15 2018

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Last modified May 3 21:49 EDT 2024. Contains 372225 sequences. (Running on oeis4.)