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A318095 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Aug 16 2018 10:29:40

%S 3,160,795,9193,73788,679923,5965933,53097417,470312224,4169820514,

%T 36968719579,327702596780,2905237626725,25754288401163,

%U 228314768590722,2024002637416141,17942832791033373,159063302137598218

%N Number of nX5 0..1 arrays with every element unequal to 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A318098.

%H R. H. Hardin, <a href="/A318095/b318095.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A318098.

%K nonn

%O 1,1

%A _R. H. Hardin_, Aug 16 2018

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Last modified February 28 01:06 EST 2024. Contains 370379 sequences. (Running on oeis4.)