A281987 - OEIS

A281987

Number of nX7 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%I #4 Feb 04 2017 09:17:21

%S 0,2008,226025,4668914,77613062,1170765416,16521306352,225583845888,

%T 3008079936046,39403294497598,509651810402523,6522893815553876,

%U 82799912439842465,1043840089707547028,13083226632116042091

%N Number of nX7 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 7 of A281988.

%H R. H. Hardin, <a href="/A281987/b281987.txt">Table of n, a(n) for n = 1..62</a>

%e Some solutions for n=2

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

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

%Y Cf. A281988.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 04 2017