OFFSET
1,1
COMMENTS
Row 6 of A275401.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +28*a(n-2) +137*a(n-3) +222*a(n-4) -178*a(n-5) -1692*a(n-6) -272*a(n-7) +217*a(n-8) +3612*a(n-9) -2256*a(n-10) +1680*a(n-11) -1648*a(n-12) +1472*a(n-13) -192*a(n-14) +512*a(n-15) -256*a(n-16) for n>17
EXAMPLE
Some solutions for n=4
..0..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..0..1. .0..0..1..2
..1..2..2..0. .2..2..0..1. .1..1..1..1. .2..2..0..0. .2..0..1..0
..1..1..1..1. .1..2..2..2. .2..2..2..2. .1..2..2..2. .1..2..2..0
..2..0..0..1. .0..1..1..2. .0..0..0..2. .0..0..1..1. .0..1..2..2
..2..2..0..0. .0..0..1..1. .1..1..0..0. .2..0..0..0. .0..0..0..1
..1..1..1..2. .1..2..2..0. .2..2..2..1. .1..1..2..2. .2..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 26 2016
STATUS
approved