OFFSET
1,1
COMMENTS
Column 7 of A250583
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) -20*a(n-2) -5*a(n-3) +113*a(n-4) -184*a(n-5) -13*a(n-6) +366*a(n-7) -407*a(n-8) +49*a(n-9) +244*a(n-10) -210*a(n-11) +59*a(n-12) +7*a(n-13) -7*a(n-14) +a(n-15) for n>19
EXAMPLE
Some solutions for n=6
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..1..1....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..1..1..1....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..1....0..0..0..1..1..1..1..1....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..1....1..0..1..1..1..1..1..1....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..1....0..1..0..1..1..1..1..1....0..0..1..0..0..0..0..0
..0..0..0..0..0..0..0..1....1..0..1..1..1..1..1..1....0..1..0..1..0..1..1..1
..0..1..0..0..1..1..1..1....0..1..1..1..1..1..1..1....1..0..1..0..1..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2014
STATUS
approved