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Number of nX7 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.
1

%I #4 Dec 22 2017 12:55:40

%S 1,323,2958,29590,711867,12662763,222799447,4440619952,87137716095,

%T 1708442840981,34048678798399,679037887566575,13548991431561885,

%U 270968659711631836,5421703961198183535,108504417044589648385

%N Number of nX7 0..1 arrays with each 1 adjacent to 2, 4 or 5 king-move neighboring 1s.

%C Column 7 of A296974.

%H R. H. Hardin, <a href="/A296973/b296973.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296974.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 22 2017