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A303106 Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 18 2018 12:41:53

%S 0,361,17229,523578,22292709,906385523,37220475492,1524895247525,

%T 62554206264579,2565661994238856,105233833702602217,

%U 4316305100898465120,177039165517795607628,7261509407874389623218,297840901987105112478569

%N Number of 6Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Row 6 of A303102.

%H R. H. Hardin, <a href="/A303106/b303106.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..0..1..1. .0..0..0..0..0. .0..0..0..1..0. .0..0..0..1..0

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

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

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

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

%Y Cf. A303102.

%K nonn

%O 1,2

%A _R. H. Hardin_, Apr 18 2018

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Last modified February 23 01:10 EST 2024. Contains 370265 sequences. (Running on oeis4.)