OFFSET
1,1
COMMENTS
Table starts
..2...3....4......5.......6.........7..........8............9............10
..3...8...16.....30......54........93........153..........241...........365
..4..16...49....132.....341.......836.......1934.........4232..........8804
..5..30..132....513....1949......7131......24496........78761........238146
..6..54..341...1949...10906.....59952.....311644......1513042.......6877791
..7..93..836...7131...59952....498772....3954995.....29333871.....203340009
..8.153.1934..24496..311644...3954995...48265519....553278547....5925354448
..9.241.4232..78761.1513042..29333871..553278547...9879827545..165189287060
.10.365.8804.238146.6877791.203340009.5925354448.165189287060.4332146485870
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
FORMULA
Empirical for column k:
k=1: a(n) = 1*n + 1
k=2: a(n) = (1/24)*n^4 + (1/12)*n^3 - (1/24)*n^2 + (47/12)*n - 1
k=3: [polynomial of degree 9] for n>3
k=4: [polynomial of degree 19] for n>7
k=5: [polynomial of degree 39] for n>15
EXAMPLE
Some solutions for n=4 k=4
..1..1..1..1....1..1..0..0....1..1..0..0....1..1..1..1....1..1..0..0
..1..0..1..1....1..1..1..0....1..1..1..1....1..1..1..0....1..0..0..0
..1..1..0..1....1..1..1..0....1..1..1..1....1..1..0..0....1..0..0..0
..1..1..0..1....0..1..1..0....1..0..0..0....1..1..1..0....1..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jul 04 2013
STATUS
approved