OFFSET
1,1
COMMENTS
Column 6 of A252861
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = -a(n-1) +4*a(n-3) +16*a(n-4) +16*a(n-5) +9*a(n-6) -11*a(n-7) -58*a(n-8) -64*a(n-9) -14*a(n-10) +79*a(n-11) +143*a(n-12) +104*a(n-13) +13*a(n-14) -101*a(n-15) -124*a(n-16) -74*a(n-17) +2*a(n-18) +34*a(n-19) +28*a(n-20) +8*a(n-21) -4*a(n-22) -4*a(n-23) for n>26
EXAMPLE
Some solutions for n=4
..0..1..0..1..1..2..1..2....0..0..1..1..2..2..0..0....0..0..1..0..1..0..0..2
..2..0..0..2..2..1..1..0....0..1..0..0..2..0..2..2....1..0..0..2..2..0..0..1
..2..1..2..1..2..2..0..2....2..0..0..1..1..2..2..0....1..2..1..2..1..2..1..2
..1..1..2..2..1..1..0..0....2..1..1..0..1..0..0..2....2..2..1..1..2..2..1..1
..1..2..1..2..1..2..1..2....0..0..1..1..2..2..0..2....1..1..2..1..2..1..2..2
..0..2..2..0..0..1..1..2....0..1..0..0..2..2..1..1....2..1..1..0..0..2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 23 2014
STATUS
approved