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A302321 Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I

%S 64,960,4509,55727,529381,4521584,45861206,444688101,4176914829,

%T 40809262060,395654711075,3811906778065,37003644433919,

%U 358647770159776,3475163995822613,33712933618938830,326851938344178738

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302322.

%H R. H. Hardin, <a href="/A302321/b302321.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302322.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 05 2018

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Last modified November 28 13:47 EST 2021. Contains 349413 sequences. (Running on oeis4.)