OFFSET
1,1
COMMENTS
Table starts
...2..........3..............4..................5.....................6
...6.........22.............60................135...................266
..20........322...........3232..............21331................103222
..70......12958........1058494...........35452250.............637396928
.252....2179956.....3062815568.......843211336888........81937334158292
.924.1976588468.90462380211862.322942973130396495.245200063296427870294
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..62
FORMULA
Empirical for row n:
n=1: a(n) = n + 1
n=2: a(n) = (1/6)*n^4 + (5/6)*n^3 + (11/6)*n^2 + (13/6)*n + 1
n=3: [polynomial of degree 9]
n=4: [polynomial of degree 16]
EXAMPLE
Some solutions for n=3 k=4
..2..2..0....3..3..3....2..1..1....1..0..0....1..1..0....2..0..0....2..2..2
..3..0..0....4..0..0....3..0..0....1..3..0....3..0..3....2..2..2....3..3..1
..4..3..3....4..2..0....3..4..4....2..4..1....4..4..1....2..2..2....4..4..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Sep 29 2013
STATUS
approved