OFFSET
1,1
COMMENTS
Column 1 of A187729.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 5*a(n-2) + 10*a(n-3) + 8*a(n-4) - 2*a(n-5) - 10*a(n-6) - 7*a(n-7) + 3*a(n-9) + a(n-10) for n>11.
Empirical g.f.: x*(16 + 43*x + 50*x^2 + 16*x^3 - 35*x^4 - 47*x^5 - 11*x^6 + 16*x^7 + 13*x^8 - 2*x^9 - 2*x^10) / (1 - 5*x^2 - 10*x^3 - 8*x^4 + 2*x^5 + 10*x^6 + 7*x^7 - 3*x^9 - x^10). - Colin Barker, Apr 25 2018
EXAMPLE
Some solutions for 3 X 2:
..1..0....0..0....1..1....1..1....0..0....0..1....1..0....1..1....0..1....0..1
..1..1....1..1....1..1....0..0....1..1....1..1....1..1....1..0....1..1....0..0
..1..1....1..1....0..1....1..1....0..0....1..1....0..1....1..1....0..0....1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2011
STATUS
approved