OFFSET
1,4
COMMENTS
Table starts
..0...0...2....2.....5......8......15.......26........46.........80.........139
..0...4...6....8....14.....24......42.......72.......124........212.........362
..2...6...9...16....29.....52......95......168.......298........522.........911
..2...8..16...48...116....288.....678.....1600......3766.......8704.......20040
..5..14..29..116...355...1102....3376.....9860.....29091......84644......244759
..8..24..52..288..1102...4260...16282....59648....220330.....806580.....2928596
.15..42..95..678..3376..16282...80825...377706...1780344....8321484....38431266
.26..72.168.1600..9860..59648..377706..2212304..13139746...77599244...451789710
.46.124.298.3766.29091.220330.1780344.13139746..98743448..738470180..5428286449
.80.212.522.8704.84644.806580.8321484.77599244.738470180.7008698040.65195901946
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) -a(n-4) for n>5
k=2: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) -a(n-4) for n>7
k=3: a(n) = 2*a(n-1) +a(n-2) -2*a(n-3) -a(n-4) for n>7
k=4: [order 16] for n>19
k=5: [order 22] for n>25
EXAMPLE
Some solutions for n=4 k=4
..0..0..0..1. .0..1..1..1. .0..0..0..0. .0..0..0..1. .0..0..0..0
..0..0..0..0. .1..1..1..1. .0..0..0..0. .0..0..1..1. .0..0..0..0
..0..0..0..0. .1..1..1..1. .0..0..1..0. .1..1..1..1. .1..0..0..0
..0..0..0..0. .1..1..1..1. .0..0..0..0. .1..1..1..1. .0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 29 2016
STATUS
approved