OFFSET
1,1
COMMENTS
Row 4 of A207762
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) -3*a(n-2) +15*a(n-3) -28*a(n-4) +16*a(n-5) -51*a(n-6) +83*a(n-7) -21*a(n-8) +65*a(n-9) -150*a(n-10) +64*a(n-11) -54*a(n-12) +132*a(n-13) -76*a(n-14) +26*a(n-15) -40*a(n-16) +20*a(n-17) for n>19
EXAMPLE
Some solutions for n=4
..1..1..1..1....1..1..1..1....1..0..0..1....0..0..1..0....1..1..0..0
..0..1..1..1....0..0..1..0....1..1..1..1....1..1..1..1....1..0..0..1
..0..1..1..0....0..0..1..0....1..0..0..1....0..0..1..0....0..0..1..0
..0..0..1..0....1..1..1..0....1..0..0..1....0..0..1..0....0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 19 2012
STATUS
approved