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A295376 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1s. 1

%I #4 Nov 21 2017 07:09:21

%S 13,120,1067,9507,85310,761795,6819658,60996884,545729054,4882126696,

%T 43677489614,390749347628,3495770832651,31274176146411,

%U 279788295651612,2503069579137149,22393213414231715,200336400920779459

%N Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1s.

%C Column 5 of A295379.

%H R. H. Hardin, <a href="/A295376/b295376.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A295376/a295376.txt">Empirical recurrence of order 70</a>

%F Empirical recurrence of order 70 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A295379.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 21 2017

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Last modified April 21 07:37 EDT 2024. Contains 371850 sequences. (Running on oeis4.)