OFFSET
1,1
COMMENTS
Column 3 of A279527.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 28*a(n-1) -140*a(n-2) -950*a(n-3) +1356*a(n-4) +6540*a(n-5) +8107*a(n-6) +1908*a(n-7) -96796*a(n-8) -102684*a(n-9) +32296*a(n-10) +326040*a(n-11) +669460*a(n-12) +82280*a(n-13) -968164*a(n-14) -764544*a(n-15) -369984*a(n-16) -28992*a(n-17) +499456*a(n-18) +281600*a(n-19) -26880*a(n-20) +51200*a(n-21) -102400*a(n-22)
EXAMPLE
Some solutions for n=4
..0..1..1. .0..1..0. .0..0..1. .0..0..0. .0..0..1. .0..1..1. .0..1..0
..1..2..2. .1..1..1. .2..1..2. .1..1..2. .0..1..0. .2..2..2. .2..0..2
..2..1..2. .2..0..0. .0..0..2. .0..1..2. .2..1..0. .0..1..1. .0..0..2
..2..0..0. .0..2..2. .2..0..0. .0..2..0. .2..0..1. .0..2..1. .0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 14 2016
STATUS
approved