OFFSET
1,1
COMMENTS
Column 5 of A269052.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 28*a(n-1) -286*a(n-2) +1290*a(n-3) -2373*a(n-4) +304*a(n-5) +3551*a(n-6) -2846*a(n-7) -546*a(n-8) +1308*a(n-9) -505*a(n-10) +76*a(n-11) -4*a(n-12) for n>13
EXAMPLE
Some solutions for n=4
..0..1..2..2..0. .2..1..2..1..2. .0..1..2..1..2. .1..2..1..0..0
..0..1..2..1..2. .2..1..2..1..2. .0..0..0..1..0. .2..2..1..0..1
..0..1..0..1..0. .0..1..0..1..0. .0..0..0..1..0. .1..0..1..0..1
..0..1..0..1..0. .2..0..0..0..0. .0..0..0..1..2. .1..0..1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 18 2016
STATUS
approved