OFFSET
1,1
COMMENTS
Row 4 of A207564
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) -4*a(n-2) +10*a(n-3) -30*a(n-4) +10*a(n-5) -4*a(n-6) +54*a(n-7) +10*a(n-8) -22*a(n-9) -62*a(n-10) -10*a(n-11) +18*a(n-12) +32*a(n-13) +7*a(n-14) -6*a(n-15) -6*a(n-16)
EXAMPLE
Some solutions for n=4
..0..0..0..0....1..0..1..1....1..1..0..1....1..0..0..0....0..0..0..0
..1..0..1..1....0..0..0..0....1..0..1..1....0..1..1..0....1..0..0..0
..0..0..0..0....1..0..1..1....1..1..0..1....1..0..0..0....0..1..1..0
..0..1..1..0....0..0..0..0....1..0..1..1....0..0..0..0....1..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 18 2012
STATUS
approved