OFFSET
1,1
COMMENTS
Column 3 of A232038
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 16*a(n-1) -32*a(n-2) -23*a(n-3) +30*a(n-4) +49*a(n-5) +160*a(n-6) -163*a(n-7) -304*a(n-8) +146*a(n-9) +59*a(n-10) +316*a(n-11) -147*a(n-12) -255*a(n-13) +70*a(n-14) +122*a(n-15) -21*a(n-16) -28*a(n-17) +2*a(n-18) +5*a(n-19) -a(n-20)
EXAMPLE
Some solutions for n=4
..0..0..1..1....0..0..1..0....0..1..0..1....0..0..0..1....0..0..0..0
..1..1..1..0....1..1..0..0....0..1..0..1....1..0..0..1....1..1..0..1
..0..1..0..1....1..0..0..1....1..1..0..1....1..1..1..1....0..1..0..1
..0..1..1..0....1..1..0..1....1..0..0..1....1..1..1..1....0..1..0..1
..1..1..1..0....1..1..0..0....1..0..0..1....1..0..0..1....0..1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2013
STATUS
approved