OFFSET
1,1
COMMENTS
Column 6 of A218319
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..92
FORMULA
Empirical: a(n) = 56*a(n-1) +448*a(n-2) +3577*a(n-3) +28616*a(n-4) +228928*a(n-5) -3430*a(n-6) -24696*a(n-7) -24010*a(n-9) -326536*a(n-10) +16807*a(n-12) +117649*a(n-15)
EXAMPLE
Some solutions for n=3
..0..0..1..1..1..1....0..1..1..1..1..0....0..0..1..0..0..0....0..0..1..1..1..0
..0..0..0..0..1..1....1..0..1..0..1..0....0..0..0..1..0..1....0..1..0..1..1..0
..1..0..1..0..0..1....0..0..0..0..1..0....1..1..0..0..1..1....0..1..0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 25 2012
STATUS
approved