OFFSET
1,1
COMMENTS
Column 6 of A259742.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +9*a(n-3) +18*a(n-4) +14*a(n-5) +19*a(n-6) -13*a(n-7) -67*a(n-8) -38*a(n-9) +19*a(n-10) +49*a(n-11) +50*a(n-12) -16*a(n-13) -41*a(n-14) -5*a(n-15) -a(n-16) -7*a(n-17) +3*a(n-18) +2*a(n-19) +a(n-20) for n>22.
EXAMPLE
Some solutions for n=4
..0..1..0..0..0..1..0..1....0..1..0..1..0..1..0..0....0..0..1..0..0..0..1..0
..1..0..1..0..1..0..1..0....1..0..0..0..1..0..1..0....0..1..0..1..0..1..0..1
..0..1..0..1..0..1..0..1....0..1..0..1..0..1..0..1....1..0..1..0..1..0..1..0
..1..0..1..0..1..0..0..0....1..0..1..0..1..0..1..0....0..1..0..1..0..1..0..1
..0..1..0..0..0..1..0..1....0..1..0..0..0..1..0..1....1..0..1..0..0..0..1..0
..0..0..1..0..1..0..1..0....1..0..1..0..1..0..0..0....0..1..0..1..0..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 04 2015
STATUS
approved