OFFSET
1,1
COMMENTS
Row 4 of A207346
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +3*a(n-2) +a(n-3) -16*a(n-4) -5*a(n-5) -2*a(n-6) +38*a(n-7) +8*a(n-8) +26*a(n-9) -59*a(n-10) +12*a(n-11) -61*a(n-12) +55*a(n-13) -57*a(n-14) +59*a(n-15) -62*a(n-16) +61*a(n-17) -41*a(n-18) +48*a(n-19) -31*a(n-20) +19*a(n-21) -20*a(n-22) +7*a(n-23) -5*a(n-24) +4*a(n-25) +a(n-27) for n>28
EXAMPLE
Some solutions for n=4
..0..0..1..0....1..0..0..1....1..1..1..0....0..1..0..0....0..0..1..0
..0..1..0..0....0..1..0..0....0..1..0..1....0..0..1..0....0..0..1..0
..1..1..0..1....1..1..1..1....0..0..1..0....1..0..0..1....1..1..0..1
..1..0..1..0....0..0..1..0....1..1..1..1....0..1..0..0....1..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 17 2012
STATUS
approved