OFFSET
1,5
COMMENTS
Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 0's
Table starts
.1...1.....1.......1.........1...........1.............1...............1
.1...2.....5.......8........18..........37............73.............151
.1...5....14......44.......149.........479..........1537............4971
.1...8....44.....221......1175........5982.........30940..........160438
.1..18...149....1175.....10210.......84893........706153.........5894192
.1..37...479....5982.....84893.....1130812......15034832.......202026037
.1..73..1537...30940....706153....15034832.....322715244......6984694296
.1.151..4971..160438...5894192...202026037....6984694296....242641943340
.1.306.16088..828709..49247065..2712108937..150562726618...8412809597191
.1.621.52020.4285218.411367276.36354079627.3245505223710.291896308327024
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..180
EXAMPLE
Some solutions for n=6 k=4
..1..3..1..0....0..1..3..1....2..2..2..0....1..3..1..0....0..1..2..2
..0..1..0..0....0..0..1..0....2..0..2..0....0..1..0..0....1..3..2..2
..0..1..3..1....0..0..0..1....2..1..2..2....0..0..0..0....0..1..0..1
..0..0..1..0....0..1..1..3....2..3..1..2....0..1..0..0....0..0..1..3
..2..2..0..0....1..3..0..1....2..1..2..2....1..3..2..2....0..1..0..1
..2..2..0..0....0..1..0..0....2..2..2..0....0..1..2..2....1..3..1..0
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 11 2011
STATUS
approved