OFFSET
1,5
COMMENTS
Table starts
.1......1.........1.........1........1..........1......1...1.1
.1......4.........5........15.......21.........57.....85.220
.1.....21.......145......1122.....7886......58446.405196
.1....189......7477....425488.20924732.1102544770
.1...1941....760736.399858087
.1..28032.122958209
.1.448157
.1
EXAMPLE
Some solutions for n=3, k=4
..0..0..2..1....1..0..2..0....0..0..0..2....0..0..1..1....0..1..0..2
..1..0..2..1....0..1..1..2....1..1..2..0....0..1..0..2....2..1..1..0
..1..2..0..2....1..2..0..2....1..2..1..2....2..1..2..2....0..1..2..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved