cp's OEIS Frontend

A286978 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.

%I A286978 #6 Apr 05 2020 23:31:07
%S A286978 3,2088,238532,27938670,3229944132,382399996325,45587718323826,
%T A286978 5491408595796062,665386690317576640,81085002249528800607,
%U A286978 9923283116879850553806,1218979761697887011274578
%N A286978 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.
%C A286978 Column 7 of A286979.
%H A286978 R. H. Hardin, <a href="/A286978/b286978.txt">Table of n, a(n) for n = 1..16</a>
%e A286978 Some solutions for n=2
%e A286978 ..1..0..1..0..1..0..0. .0..0..0..0..0..0..1. .0..0..1..0..0..0..0
%e A286978 ..0..0..1..0..1..0..1. .1..1..0..0..0..1..0. .0..1..1..0..1..0..1
%Y A286978 Cf. A286979.
%K A286978 nonn
%O A286978 1,1
%A A286978 _R. H. Hardin_, May 17 2017