OFFSET
1,2
COMMENTS
Row 2 of A266101.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) -a(n-2) +6*a(n-3) +4*a(n-4) -8*a(n-5) -15*a(n-6) -135*a(n-7) -149*a(n-8) -34*a(n-9) +87*a(n-10) +139*a(n-11) +59*a(n-12) -2*a(n-13) -15*a(n-14) -9*a(n-15) -a(n-16) for n>19
EXAMPLE
Some solutions for n=4
..0..1..2..0....1..0..1..1....1..0..0..1....0..0..1..2....0..0..1..1
..2..1..0..1....1..1..0..1....1..2..1..0....0..1..1..0....1..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 21 2015
STATUS
approved