OFFSET
1,2
COMMENTS
Table starts
.1.4...9...16....25.....36.....49......64......81.....100.....121.....144
.0.4..18...40....70....108....154.....208.....270.....340.....418.....504
.0.2..36...98...198....330....494.....690.....918....1178....1470....1794
.0.0..54..196...480....876...1398....2036....2790....3660....4646....5748
.0.0..90..416..1208...2400...4092....6208....8766...11752...15166...19008
.0.0.144..884..3006...6520..11896...18832...27478...37696...49508...62896
.0.0.108.1368..6264..15596..31172...52256...79634..112568..151266..195512
.0.0..72.2028.12778..37124..81362..145100..231552..338044..465734..613212
.0.0..54.2968.25716..87432.209700..399524..668522.1010572.1430378.1921532
.0.0...0.3096.44824.187924.505878.1044900.1847506.2912204.4254568
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..201
FORMULA
Empirical: T(1,k) = k^2
Empirical: T(2,k) = 4*k^2 - 6*k for k>1
Empirical: T(3,k) = 16*k^2 - 44*k + 18 for k>3
Empirical: T(4,k) = 58*k^2 - 232*k + 180 for k>5
Empirical: T(5,k) = 214*k^2 - 1080*k + 1152 for k>7
Empirical: T(6,k) = 788*k^2 - 4736*k + 6256 for k>9
Empirical: T(7,k) = 2776*k^2 - 19580*k + 30728 for k>11
Empirical: T(8,k) = 9878*k^2 - 79388*k + 143388 for k>13
Empirical: T(9,k) = 35254*k^2 - 316744*k + 644876 for k>15
Empirical: T(10,k) = 124248*k^2 - 1238146*k + 2807812 for k>17
EXAMPLE
Some n=4 solutions for 4X4
..0..0..0..0....0..0..0..0....4..3..2..0....0..0..0..4....0..1..0..0
..0..0..0..1....3..2..4..0....0..0..1..0....0..2..0..3....0..3..0..4
..0..0..4..3....0..1..0..0....0..0..0..0....0..1..0..0....0..2..0..0
..0..0..0..2....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 08 2011
STATUS
approved