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A265679
T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0.
6
1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 17, 23, 1, 1, 1, 75, 632, 209, 1, 1, 1, 342, 20592, 54920, 2301, 1, 1, 1, 1609, 734400, 17745759, 7286105, 29992, 1, 1, 1, 7794, 27705984, 6394366422, 29353774235, 1365147580, 450525, 1, 1, 1, 38769, 1086831962
OFFSET
1,9
COMMENTS
Table starts
.1.......1............1..............1...............1.............1
.1.......1............1..............1...............1.............1
.1.......4...........17.............75.............342..........1609
.1......23..........632..........20592..........734400......27705984
.1.....209........54920.......17745759......6394366422.2477249527858
.1....2301......7286105....29353774235.135397500774458
.1...29992...1365147580.82336362679563
.1..450525.342267410418
.1.7666097
.1
LINKS
EXAMPLE
Some solutions for n=4 k=4
..0..1..2..2....0..1..2..0....0..1..1..2....0..1..2..0....0..0..1..2
..3..3..1..1....3..3..3..2....3..2..0..3....3..3..1..2....1..3..3..0
..0..0..0..3....1..1..1..0....1..1..2..2....1..2..0..3....0..1..2..2
..3..2..1..2....0..3..2..2....0..0..3..3....0..3..1..2....2..3..1..3
CROSSREFS
Sequence in context: A352834 A203639 A358319 * A348989 A362297 A354358
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 13 2015
STATUS
approved