OFFSET
1,1
COMMENTS
Column 7 of A228660
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 30*a(n-1) -226*a(n-2) -108*a(n-3) +4324*a(n-4) -1612*a(n-5) -27016*a(n-6) -2240*a(n-7) +50112*a(n-8) +20032*a(n-9) -16768*a(n-10) -4864*a(n-11) +2048*a(n-12)
EXAMPLE
Some solutions for n=4
..1..0..0..0..0..0..1....1..0..0..0..0..0..1....1..0..0..0..0..1..0
..0..0..0..0..0..0..1....0..0..1..0..1..0..0....0..0..0..0..0..0..0
..0..0..1..0..1..0..1....1..0..1..0..1..0..1....1..0..0..0..0..0..0
..0..0..1..0..0..0..1....0..0..1..0..0..0..1....1..0..1..0..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Aug 29 2013
STATUS
approved