OFFSET
1,1
COMMENTS
Row 4 of A207785
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 4*a(n-1) -13*a(n-3) -6*a(n-4) +41*a(n-5) +10*a(n-6) -57*a(n-7) -32*a(n-8) +66*a(n-9) +18*a(n-10) -31*a(n-11) +14*a(n-13) -30*a(n-14) +4*a(n-15) +32*a(n-16) -13*a(n-17) -12*a(n-18) +a(n-19) +6*a(n-20) -9*a(n-21) +12*a(n-22) -2*a(n-23) -3*a(n-25) +2*a(n-26) -2*a(n-27) +a(n-28)
EXAMPLE
Some solutions for n=4
..1..1..1..1....1..1..0..0....0..0..1..0....0..1..0..1....1..1..1..0
..0..1..0..1....0..1..0..1....1..0..1..0....0..1..0..1....0..1..0..0
..0..1..0..0....0..0..1..0....0..1..0..1....1..0..1..0....0..1..0..1
..1..0..1..0....1..0..1..0....0..1..0..0....1..0..1..0....1..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 20 2012
STATUS
approved