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Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
1

%I #4 Jan 03 2018 12:31:37

%S 32,120,1801,10647,118791,858645,8377550,66530487,609364234,

%T 5059995952,44971320657,381429636069,3341632910246,28629690153139,

%U 249103320934175,2144478674778949,18597757367754151,160470534661696174

%N Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.

%C Row 5 of A297694.

%H R. H. Hardin, <a href="/A297698/b297698.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A297698/a297698.txt">Empirical recurrence of order 60</a>

%F Empirical recurrence of order 60 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297694.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 03 2018

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Last modified September 22 14:04 EDT 2024. Contains 376114 sequences. (Running on oeis4.)