OFFSET
1,1
COMMENTS
Table starts
..2...3.....4.......5........6..........7............8............9
..3...8....18......36.......66........113..........183..........283
..4..18....62.....193......558.......1507.........3828.........9149
..5..36...193.....944.....4528......20336........85018.......330949
..6..66...558....4528....37012.....283430......2010569.....13174529
..7.113..1507...20336...283430....3754497.....46389565....529521521
..8.183..3828...85018..2010569...46389565...1009485843..20376855291
..9.283..9149..330949.13174529..529521521..20376855291.732609096798
.10.421.20609.1200425.79606861.5548518625.377546087348
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..127
FORMULA
Empirical for column k:
k=1: a(n) = n + 1
k=2: a(n) = (1/24)*n^4 + (1/12)*n^3 + (23/24)*n^2 + (11/12)*n + 1
k=3: [polynomial of degree 9] for n>3
k=4: [polynomial of degree 19] for n>8
k=5: [polynomial of degree 39] for n>19
EXAMPLE
Some solutions for n=4 k=4
..1..1..1..0....1..0..0..0....1..1..1..0....1..1..1..1....0..0..0..0
..0..0..0..1....0..0..1..0....1..0..0..0....1..1..0..0....0..0..0..1
..0..0..0..1....0..1..1..0....0..0..0..1....0..0..0..0....0..0..0..1
..0..0..0..0....0..1..1..0....0..0..1..1....0..0..1..1....0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jul 03 2013
STATUS
approved