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Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 11 2018 11:59:03

%S 8,1934,15569,251254,3204956,46360666,637088915,8880747825,

%T 123521424862,1717557375519,23910961429217,332517383714540,

%U 4627380566545690,64369973050145418,895641924918067374,12460311385203779872

%N Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302670.

%H R. H. Hardin, <a href="/A302669/b302669.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302670.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 11 2018