OFFSET
1,1
COMMENTS
Column 2 of A260501
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-3) +6*a(n-4) -7*a(n-6) -18*a(n-7) -10*a(n-8) +5*a(n-9) +7*a(n-10) +16*a(n-11) +6*a(n-12) -4*a(n-13) -3*a(n-15) -2*a(n-16) +a(n-17) for n>19
EXAMPLE
Some solutions for n=4
..0..0..0..1....1..1..0..0....0..0..0..0....1..0..0..1....1..1..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..1..0..0..0....0..0..0..0....0..0..1..0....0..0..0..0....0..0..0..0
..0..0..0..1....0..0..1..0....0..0..1..0....0..0..1..0....1..1..0..0
..0..0..0..1....0..0..1..0....0..0..0..0....0..0..1..0....0..0..0..0
..1..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 27 2015
STATUS
approved