OFFSET
1,1
COMMENTS
Column 4 of A204740
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +30*a(n-2) -14*a(n-3) -363*a(n-4) +75*a(n-5) +2444*a(n-6) -156*a(n-7) -10383*a(n-8) -177*a(n-9) +29550*a(n-10) +1794*a(n-11) -57869*a(n-12) -4627*a(n-13) +78312*a(n-14) +6440*a(n-15) -71976*a(n-16) -5208*a(n-17) +42880*a(n-18) +2304*a(n-19) -14928*a(n-20) -432*a(n-21) +2304*a(n-22)
EXAMPLE
Some solutions for n=4
..1..1..0..1..1....0..1..0..1..1....0..1..1..0..1....0..1..0..1..1
..1..0..1..1..1....1..0..1..1..1....1..1..0..1..1....1..1..1..1..1
..1..1..0..1..1....1..1..0..1..1....0..1..1..0..1....0..1..0..1..1
..0..1..1..1..1....0..1..1..1..1....1..0..1..1..1....1..1..1..1..1
..1..1..0..1..1....1..0..1..1..1....1..1..0..1..1....0..1..0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 18 2012
STATUS
approved