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A296395 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s. 1

%I #4 Dec 11 2017 14:02:26

%S 13,328,4237,72069,1181174,19142885,313843472,5120370505,83668287300,

%T 1366763186313,22326908025452,364741919560559,5958331264235749,

%U 97335561172566173,1590069893991415026,25975333861970957483

%N Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s.

%C Column 7 of A296396.

%H R. H. Hardin, <a href="/A296395/b296395.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296396.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 11 2017

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Last modified July 28 20:51 EDT 2024. Contains 374726 sequences. (Running on oeis4.)