OFFSET
1,1
COMMENTS
Column 2 of A278734.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical polynomial of degree 28
FORMULA
Empirical polynomial of degree 28 (see link above).
EXAMPLE
Some solutions for n=4
..2..2. .1..1. .2..1. .1..1. .2..0. .1..0. .3..0. .0..0. .1..1. .2..2
..3..0. .1..1. .2..2. .3..2. .3..2. .3..2. .3..0. .3..1. .2..1. .3..0
..0..2. .0..0. .1..0. .2..2. .0..0. .0..0. .3..0. .1..0. .2..2. .2..3
..0..2. .1..1. .1..0. .2..3. .2..0. .0..1. .2..1. .1..0. .1..0. .3..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2016
STATUS
approved