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A297510 Number of 5Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s. 1

%I #6 Dec 31 2017 07:34:54

%S 1,280,2534,14201,270845,3624914,35049871,431068698,5534003000,

%T 63359116756,744028146659,9066464960896,107792105015031,

%U 1274517673890830,15252160661225132,182090112172787219,2165329133215506254

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

%C Row 5 of A297506.

%H R. H. Hardin, <a href="/A297510/b297510.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A297510/a297510.txt">Empirical recurrence of order 59</a>

%F Empirical recurrence of order 59 (see link above)

%e Some solutions for n=4

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

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

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

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

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

%Y Cf. A297506.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 31 2017

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Last modified April 25 09:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)