OFFSET
1,5
COMMENTS
Every 0 is next to 0 3's, every 1 is next to 1 4's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1's
Table starts
.1..1....1.....1......1........1.........1..........1............1
.1..2....3.....4......6........9........13.........19...........28
.1..3....7....12.....26.......56.......113........235..........490
.1..4...12....35....102......281.......787.......2237.........6346
.1..6...26...102....473.....1900......7428......29859.......120761
.1..9...56...281...1900....11280.....62298.....350779......1995082
.1.13..113...787...7428....62298....494579....3938849.....31419870
.1.19..235..2237..29859...350779...3938849...44461736....500005832
.1.28..490..6346.120761..1995082..31419870..500005832...7927841482
.1.41.1012.17976.488123.11350977.250968250.5615771466.125246087887
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..264
EXAMPLE
Some solutions for n=6 k=4
..0..2..2..2....0..0..0..0....0..0..0..0....0..2..2..0....0..0..0..0
..0..2..0..2....0..0..2..2....0..2..2..2....0..2..2..0....2..2..2..2
..2..2..0..2....0..0..2..2....2..2..0..2....0..0..0..0....2..0..0..2
..2..0..0..2....2..2..0..0....2..0..0..2....0..0..0..0....2..0..0..2
..2..2..0..2....2..2..0..0....2..0..2..2....0..2..2..0....2..0..0..2
..0..2..2..2....0..0..0..0....2..2..2..0....0..2..2..0....2..2..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 06 2011
STATUS
approved