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A297505 Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s. 1

%I

%S 37,2097,34757,1247716,35049871,978288822,28914051279,823340493402,

%T 23748019543354,684563956136832,19685697905900807,567106229569054219,

%U 16326031115140984900,470031756510991757935,13533758185630160222532

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

%C Column 7 of A297506.

%H R. H. Hardin, <a href="/A297505/b297505.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A297506.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 31 2017

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Last modified June 30 19:12 EDT 2022. Contains 354945 sequences. (Running on oeis4.)