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A302813 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 13 2018 13:12:46

%S 64,8192,218640,7267160,232260380,7428713676,238687785290,

%T 7656052278093,245617324998434,7880802121694786,252845509516657378,

%U 8112313563916385380,260276854454728693116,8350749999160907426626,267926476583534501527483

%N Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 7 of A302808.

%H R. H. Hardin, <a href="/A302813/b302813.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%Y Cf. A302808.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 13 2018

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Last modified July 13 23:31 EDT 2024. Contains 374290 sequences. (Running on oeis4.)