OFFSET
1,1
COMMENTS
Column 2 of A186902
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n)=a(n-1)+a(n-2)+4*a(n-3)+9*a(n-4)+9*a(n-5)+a(n-6)-26*a(n-7)-50*a(n-8)-58*a(n-9)-32*a(n-10)-17*a(n-11)-a(n-12)+14*a(n-13)+61*a(n-14)+66*a(n-15)+50*a(n-16)+13*a(n-17) for n>19
EXAMPLE
Some solutions for 5X3
..1..1..0....1..0..1....1..0..1....0..0..1....0..0..1....0..1..0....0..0..0
..0..1..1....1..0..0....1..0..0....0..0..1....0..0..1....0..1..0....0..1..0
..0..0..1....1..0..1....1..1..0....1..1..1....0..1..1....0..1..1....1..1..0
..0..1..1....1..1..1....0..1..1....1..1..0....1..1..0....0..0..1....1..0..0
..0..1..0....0..1..0....0..1..1....0..1..1....0..0..0....0..0..0....1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2011
STATUS
approved