OFFSET
1,1
COMMENTS
Row 5 of A188706.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 13*a(n-1) - 36*a(n-2) + 29*a(n-3) - 5*a(n-4) for n>5.
Empirical g.f.: x*(13 - 49*x + 49*x^2 - 33*x^3 + 4*x^4) / ((1 - x)*(1 - 12*x + 24*x^2 - 5*x^3)). - Colin Barker, Apr 28 2018
EXAMPLE
Some solutions for 5 X 3:
0 0 0 1 1 0 0 0 1 1 1 1 0 1 0 1 1 1 1 1 1
1 1 1 1 0 1 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1
0 0 1 1 1 1 1 1 1 1 0 1 0 1 0 0 1 1 1 1 1
1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 0
0 1 1 0 0 0 0 1 1 1 1 1 1 0 1 1 0 1 0 0 1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 08 2011
STATUS
approved