OFFSET
1,1
COMMENTS
Column 3 of A274065.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 7*a(n-1) -19*a(n-2) +26*a(n-3) -9*a(n-4) -55*a(n-5) +156*a(n-6) -233*a(n-7) +196*a(n-8) +46*a(n-9) -418*a(n-10) +768*a(n-11) -848*a(n-12) +431*a(n-13) +281*a(n-14) -1061*a(n-15) +1365*a(n-16) -1061*a(n-17) +405*a(n-18) +443*a(n-19) -737*a(n-20) +805*a(n-21) -537*a(n-22) +119*a(n-23) -34*a(n-24) -224*a(n-25) +132*a(n-26) -105*a(n-27) +130*a(n-28) +8*a(n-29) +83*a(n-30) +2*a(n-31) -31*a(n-32) +9*a(n-33) -57*a(n-34) +5*a(n-35) +7*a(n-36) -2*a(n-37) +10*a(n-38) -2*a(n-40) for n>49
EXAMPLE
Some solutions for n=4
..0..1..1. .0..1..2. .0..1..2. .0..1..1. .0..0..1. .0..1..2. .0..1..2
..2..2..0. .0..1..2. .1..0..2. .0..2..2. .2..1..0. .1..2..0. .0..1..2
..0..1..2. .0..1..2. .1..2..1. .2..1..0. .2..1..0. .0..0..1. .2..0..0
..0..1..2. .2..0..0. .2..0..0. .0..0..2. .2..1..0. .2..2..1. .1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 09 2016
STATUS
approved