A264945 T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal horizontal neighbors and new values introduced sequentially from 0.

1, 0, 1, 0, 2, 1, 0, 1, 8, 1, 0, 2, 56, 60, 1, 0, 1, 332, 3201, 544, 1, 0, 2, 2350, 184740, 307016, 6040, 1, 0, 1, 16108, 11375145, 196389904, 43200625, 79008, 1, 0, 2, 114148, 730983420, 137409486772, 368696849320, 8403205056, 1190672, 1, 0, 1, 817280

Offset: 1

Author

R. H. Hardin, Nov 29 2015

Keywords

• nonn
• tabl

Comments

Table starts

.1.....0..........0................0.....................0....................0

.1.....2..........1................2.....................1....................2

.1.....8.........56..............332..................2350................16108

.1....60.......3201...........184740..............11375145............730983420

.1...544.....307016........196389904..........137409486772......102117302729744

.1..6040...43200625.....368696849320......3537141103745065.36724170744914466520

.1.79008.8403205056.1122409297218768.173357342638694530002

Examples

			Some solutions for n=4 k=4
..0..1..0..2....0..1..0..1....0..1..2..0....0..1..0..2....0..1..2..0
..0..1..0..2....2..3..1..0....3..0..3..2....1..0..2..0....3..2..1..2
..2..3..1..3....0..1..2..3....1..2..0..2....1..3..2..3....1..2..3..0
..3..1..3..2....3..2..3..2....3..1..3..1....3..1..3..2....3..0..3..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..66

Crossrefs

Column 2 is A053871.