OFFSET
1,1
COMMENTS
Row 4 of A207938
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) -6*a(n-2) -42*a(n-3) +62*a(n-4) +91*a(n-5) -149*a(n-6) -91*a(n-7) +138*a(n-8) +42*a(n-9) -50*a(n-10) -7*a(n-11) +6*a(n-12) for n>13
EXAMPLE
Some solutions for n=4
..1..0..1..1....1..0..1..0....0..0..0..0....1..1..1..1....1..0..1..0
..0..1..1..0....1..1..1..1....0..1..1..0....1..1..1..1....0..1..1..0
..1..1..1..1....1..1..1..1....0..0..0..0....1..1..1..1....1..0..1..0
..0..1..1..0....1..1..1..1....0..1..1..0....1..1..1..1....1..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 21 2012
STATUS
approved