OFFSET
1,2
COMMENTS
Every 0 is next to 0 2's, every 1 is next to 1 1's, every 2 is next to 2 3's, every 3 is next to 3 4's, every 4 is next to 4 0's
Table starts
..1....2......3........4..........6............9.............13
..2....5......9.......20.........41...........85............178
..3....9.....26.......87........282..........919...........2987
..4...20.....87......492.......2687........14509..........78717
..6...41....282.....2687......23956.......214124........1918608
..9...85....919....14509.....214124......3166711.......46887039
.13..178...2987....78717....1918608.....46887039.....1147966466
.19..369...9722...427700...17197531....695103098....28133304588
.28..769..31643..2320738..154075730..10297360567...688970472958
.41.1600.102962.12593583.1380294235.152533682507.16871844816740
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..364
EXAMPLE
Some solutions for n=6 k=4
..0..0..0..0....0..1..0..0....1..1..0..0....0..1..0..0....0..0..0..0
..1..0..1..1....0..1..0..0....0..0..1..1....0..1..0..0....0..0..1..0
..1..0..0..0....0..0..0..0....1..1..0..0....1..0..0..0....0..0..1..0
..0..0..1..1....0..0..0..0....0..0..4..0....1..0..4..0....0..0..0..1
..1..0..0..0....0..1..0..0....0..0..0..0....0..4..0..0....1..1..0..1
..1..0..0..0....0..1..0..0....0..1..1..0....0..0..1..1....0..0..0..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 08 2011
STATUS
approved