OFFSET
1,1
COMMENTS
Column 4 of A230176
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
R. H. Hardin, Empirical recurrence of order 81
FORMULA
Empirical recurrence of order 81 (see link above)
EXAMPLE
Some solutions for n=3
..2..0..1..1....0..2..2..0....2..1..0..2....0..0..0..2....0..0..0..2
..2..0..2..2....1..1..2..0....2..0..1..0....2..1..1..0....0..2..2..0
..0..2..0..0....1..0..0..0....0..1..2..0....0..0..0..2....2..2..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 11 2013
STATUS
approved