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A296334 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s. 1

%I #4 Dec 10 2017 12:09:34

%S 34,705,10277,180404,3051494,51335713,869077778,14686634221,

%T 248214082895,4195672165071,70917160317395,1198689440814874,

%U 20261102869525595,342467454375040876,5788629587868911080,97843565288256133869

%N Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0 or 2 neighboring 1s.

%C Column 7 of A296335.

%H R. H. Hardin, <a href="/A296334/b296334.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296335.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 10 2017

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Last modified March 29 08:45 EDT 2024. Contains 371267 sequences. (Running on oeis4.)