OFFSET
1,4
COMMENTS
Every 0 is next to 0 1's, every 1 is next to 1 4's, every 2 is next to 2 0's, every 3 is next to 3 2's, every 4 is next to 4 3's
Table starts
..1....1......2.......3.........5...........8...........13.............21
..1....7.....10......23........57.........122..........275............623
..2...10.....30......88.......299.........978.........3132..........10106
..3...23.....88.....495......2223.......10854........53647.........262013
..5...57....299....2223.....16949......119487.......869434........6327405
..8..122....978...10854....119487.....1300388.....13932416......150048836
.13..275...3132...53647....869434....13932416....224664284.....3596759057
.21..623..10106..262013...6327405...150048836...3596759057....86035336419
.34.1394..32721.1280764..45825170..1620592121..57811730338..2056052205956
.55.3133.105779.6254945.332648911.17491804071.929821862056.49191557937439
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..220
EXAMPLE
Some solutions for n=6 k=4
..0..2..0..0....2..0..0..0....0..2..0..0....0..0..0..0....2..0..0..0
..0..2..2..0....0..0..2..2....0..2..2..2....0..0..0..0....0..2..2..2
..0..0..2..0....2..3..2..0....0..0..0..0....0..2..2..2....2..2..0..0
..0..0..2..0....0..2..0..0....2..2..2..0....0..2..0..0....0..0..0..2
..0..2..2..0....2..2..0..0....0..0..2..0....0..2..2..0....0..0..0..2
..0..2..0..2....0..0..0..0....0..0..2..0....0..0..2..0....0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 01 2011
STATUS
approved