OFFSET
1,1
COMMENTS
Column 4 of A226992
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..62
R. H. Hardin, Empirical polynomial of degree 31
FORMULA
Empirical polynomial of degree 31 (see link above)
EXAMPLE
Some solutions for n=4
..0..0..2..4....0..0..1..3....0..0..1..3....1..2..2..3....0..1..2..2
..0..0..2..4....0..1..2..3....1..2..3..3....2..1..1..2....0..2..4..3
..0..1..2..2....1..3..2..2....2..4..4..2....3..2..2..2....1..2..3..3
..0..2..2..1....2..3..3..2....3..4..4..3....4..4..3..2....2..3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2013
STATUS
approved