OFFSET
1,2
COMMENTS
Table starts
.1.4..9..16....25......36......49......64......81.....100.....121....144....169
.0.4.20..52...100.....164.....244.....340.....452.....580.....724....884...1060
.0.0.28.136...360.....696....1144....1704....2376....3160....4056...5064...6184
.0.0.24.272..1084....2660....5032....8164...12056...16708...22120..28292..35224
.0.0..8.456..2896....9216...20648...37472...59524...86656..118868.156160.198532
.0.0..0.584..6952...29500...79088..162320..281320..435436..623508.845084
.0.0..0.400.14024...86608..285048..668176.1272720.2110944.3180724
.0.0..0..80.22200..226864..961728.2625640.5543744.9907248
.0.0..0...0.26672..522608.3009408.9817240
.0.0..0...0.22448.1050048.8701592
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..144
FORMULA
Empirical: Row n is a polynomial of degree 2 for k>2n-3
EXAMPLE
Some n=4 solutions for 4X4
..0..2..0..0....0..4..0..0....0..0..0..0....4..0..0..0....0..3..0..0
..1..0..3..0....0..0..0..0....0..0..3..0....0..3..0..0....0..0..2..0
..0..0..0..4....0..1..0..3....0..0..0..2....0..0..1..0....0..1..0..4
..0..0..0..0....0..0..2..0....4..0..1..0....0..0..0..2....0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 02 2011
STATUS
approved