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Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1

%I #4 Apr 07 2018 17:02:42

%S 64,361,599,3655,33596,306064,2342685,20184979,170625048,1425095842,

%T 12008438672,101010115716,849123265189,7142364165791,60060064234249,

%U 505098146911393,4247807853135286,35722407791248043,300417586740296887

%N Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 7 of A302415.

%H R. H. Hardin, <a href="/A302414/b302414.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A302415.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 07 2018