OFFSET
1,1
COMMENTS
Table starts
...3...7.....14......33........78........189........482.......1225.......3238
...4...8.....38......90.......363.......1163.......3985......14650......50088
...7..15....100.....311......1706.......7844......35696.....184692.....873979
..12..20....272....1096......8340......55788.....345022....2502891...16525492
..23..31....740....4085.....41237.....401240....3407422...34218952..319475231
..44..52...2061...15732....217846....3002376...35510853..491895476.6459555901
..87..95...5834...62039...1158551...22654165..374180527.7170248270
.172.180..16521..245850...6261166..172363558.3979476204
.343.351..46969..980361..34110556.1318257485
.684.692.133864.3915982.186830745
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..111
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3)
k=2: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) for n>5
k=3: [order 18]
k=4: [order 28] for n>31
Empirical for row n:
n=1: a(n) = 4*a(n-1) +a(n-2) -16*a(n-3) +4*a(n-4) +24*a(n-5) -16*a(n-6)
n=2: [order 21]
n=3: [order 83]
EXAMPLE
Some solutions for n=4 k=4
..0..0..0..0..0....0..0..1..1..1....0..0..1..1..1....0..1..1..1..1
..1..1..0..0..0....1..1..0..0..0....0..1..0..1..1....1..0..0..0..0
..1..1..1..0..0....1..1..1..0..0....1..0..1..0..0....1..1..0..0..0
..1..1..0..0..0....1..1..0..0..0....1..1..0..0..0....1..1..1..2..2
..1..1..1..0..0....0..0..0..0..0....1..1..1..1..1....1..1..2..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 08 2013
STATUS
approved