OFFSET
1,1
COMMENTS
Row 3 of A207068
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) -9*a(n-2) +21*a(n-3) -56*a(n-4) +64*a(n-5) -89*a(n-6) +192*a(n-7) -119*a(n-8) +117*a(n-9) -305*a(n-10) +46*a(n-11) -64*a(n-12) +323*a(n-13) +39*a(n-14) +36*a(n-15) -228*a(n-16) -56*a(n-17) -4*a(n-18) +80*a(n-19) +24*a(n-20) -16*a(n-22)
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..0..0..0....0..1..1..0....1..1..0..0....1..0..0..0
..0..1..1..1....1..1..1..0....0..1..1..1....0..0..0..0....0..1..1..1
..0..1..1..0....1..1..1..0....0..1..1..0....0..0..0..0....0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 14 2012
STATUS
approved