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A297759 Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s. 1

%I #4 Jan 05 2018 18:58:21

%S 1,78,734,7081,109228,1456855,18733087,251641086,3354939709,

%T 44459037210,591410913625,7865974374583,104544861995486,

%U 1389898494780143,18479036986992209,245664832111845278,3265995303275846454

%N Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.

%C Column 5 of A297762.

%H R. H. Hardin, <a href="/A297759/b297759.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A297759/a297759.txt">Empirical recurrence of order 78</a>

%F Empirical recurrence of order 78 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297762.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 05 2018

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Last modified April 25 05:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)