OFFSET
1,1
COMMENTS
Column 2 of A260106
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +2*a(n-2) +12*a(n-4) -a(n-5) -8*a(n-6) +2*a(n-7) -51*a(n-8) -22*a(n-9) -12*a(n-10) -46*a(n-11) +31*a(n-12) +12*a(n-13) -21*a(n-14) +18*a(n-15) -6*a(n-16) -18*a(n-17) for n>18
EXAMPLE
Some solutions for n=4
..0..0..1..0....1..0..0..1....1..0..1..0....0..0..0..1....0..1..0..1
..0..0..0..1....0..0..0..0....0..1..0..1....0..0..1..0....1..0..1..0
..0..0..1..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....1..0..0..1....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....1..0..1..0....0..0..1..0....0..1..0..0
..1..0..1..0....0..0..0..1....0..1..0..0....0..1..0..0....1..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 16 2015
STATUS
approved