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A265241 T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal antidiagonal neighbors and new values introduced sequentially from 0. 7
1, 1, 1, 1, 2, 1, 1, 4, 10, 1, 1, 8, 92, 68, 1, 1, 16, 888, 4716, 604, 1, 1, 32, 8880, 359172, 414716, 6584, 1, 1, 64, 91180, 29189088, 327847656, 55210372, 85048, 1, 1, 128, 955320, 2481226704, 284341627344, 559450092072, 10337500044, 1269680, 1, 1, 256 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

.1....1........1............1................1....................1

.1....2........4............8...............16...................32

.1...10.......92..........888.............8880................91180

.1...68.....4716.......359172.........29189088...........2481226704

.1..604...414716....327847656.....284341627344......262625535902888

.1.6584.55210372.559450092072.6395116792255680.79291881287786838864

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..71

EXAMPLE

Some solutions for n=3 k=4

..0..0..1..1....0..1..2..2....0..0..1..1....0..1..2..1....0..1..2..1

..2..0..2..0....2..1..0..2....2..0..2..0....0..1..2..0....2..0..0..0

..2..1..1..2....0..1..1..0....1..1..2..2....2..0..2..1....2..1..1..2

CROSSREFS

Column 2 is A165968(n+1).

Row 2 is A000079(n-1).

Sequence in context: A055130 A051292 A094424 * A166888 A083677 A075803

Adjacent sequences:  A265238 A265239 A265240 * A265242 A265243 A265244

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Dec 06 2015

STATUS

approved

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Last modified August 3 20:08 EDT 2020. Contains 336201 sequences. (Running on oeis4.)