|
%I #4 Jul 26 2018 17:01:28
%S 64,101,731,5704,52617,508181,4726521,44156330,416173164,3910781456,
%T 36706659069,345101051493,3243559396952,30475536981532,
%U 286405959411440,2691636786909646,25294309153595416,237705058354164840
%N Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
%C Column 7 of A317383.
%H R. H. Hardin, <a href="/A317382/b317382.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e ..0..0..1..0..0..0..0. .0..1..1..1..1..1..1. .0..1..0..0..0..0..0
%e ..0..0..0..0..0..0..0. .1..0..1..1..1..1..0. .0..0..0..0..0..0..0
%e ..0..0..0..0..0..0..0. .1..1..1..1..1..1..1. .1..0..0..1..1..0..1
%e ..0..1..1..0..0..0..0. .0..1..1..1..1..1..0. .0..0..0..0..0..0..0
%e ..0..1..1..0..0..0..0. .1..1..0..1..0..1..1. .0..1..0..0..0..0..0
%Y Cf. A317383.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jul 26 2018
| 