OFFSET
1,1
COMMENTS
Column 6 of A252983
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 63438848*n^2 - 1019729920*n + 4176308004 for n>10
EXAMPLE
Some solutions for n=4
..0..1..1..1..1..2....0..1..1..1..2..2....0..1..2..2..2..2....0..0..1..1..1..1
..0..1..1..1..2..2....0..1..1..2..2..2....1..1..2..2..2..3....1..1..1..2..2..2
..0..1..1..1..2..3....1..1..1..2..2..2....1..1..2..2..2..3....1..2..2..2..2..3
..1..1..2..2..2..3....1..1..1..2..2..3....1..2..2..2..2..3....2..2..2..3..3..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2014
STATUS
approved