OFFSET
1,4
COMMENTS
Table starts
.0........1...........2...............4.................8................16
.0........9..........50.............484..............3864.............32400
.0.......64........1056...........45369...........1337130..........44315649
.0......441.......21660.........4096576.........438377904.......56606878084
.0.....3025......441720.......367565584......142283547000....71306050492681
.0....20736.....8997120.....32940435025....46087307409528.89545789526100625
.0...142129...183206016...2951293792489.14921719105582926
.0...974169..3730330800.264404315544196
.0..6677056.75953515968
.0.45765225
Even columns are perfect squares
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..71
EXAMPLE
Some solutions for n=3 k=4
..1..0..1..0....0..0..3..1....0..2..0..0....1..2..0..1....0..1..1..0
..1..1..1..2....0..4..2..0....0..1..4..2....0..0..5..2....0..4..1..0
..1..2..1..1....1..1..0..0....0..0..2..1....0..1..0..0....2..0..2..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 06 2013
STATUS
approved