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A183554 T(n,k)=Number of nXk 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors 9
0, 3, 3, 3, 15, 3, 9, 71, 71, 9, 15, 299, 583, 299, 15, 33, 1325, 5287, 5287, 1325, 33, 63, 5845, 46841, 95101, 46841, 5845, 63, 129, 25785, 417809, 1728533, 1728533, 417809, 25785, 129, 255, 113841, 3721925, 31363527, 63868351, 31363527, 3721925, 113841 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Table starts
...0.......3..........3.............9...............15..................33
...3......15.........71...........299.............1325................5845
...3......71........583..........5287............46841..............417809
...9.....299.......5287.........95101..........1728533............31363527
..15....1325......46841.......1728533.........63868351..........2359134621
..33....5845.....417809......31363527.......2359134621........177385265619
..63...25785....3721925.....569461759......87176303417......13344696858771
.129..113841...33169105...10339213765....3221377019429....1003889179688773
.255..502523..295565367..187720469393..119037100116183...75519989933088273
.513.2218399.2633809823.3408294462361.4398697422258081.5681183354145927001
LINKS
EXAMPLE
Some solutions for 4X3
..0..0..1....0..0..1....0..0..0....0..0..1....1..0..0....1..1..0....1..1..1
..2..0..1....0..2..1....2..2..0....2..2..1....1..1..0....0..0..0....1..2..1
..2..0..0....2..2..2....2..1..2....2..1..1....0..1..0....0..0..1....1..2..1
..2..2..2....0..0..0....2..1..2....2..2..1....0..1..1....2..2..1....1..2..1
CROSSREFS
Column 1 is A062510(n-1)
Sequence in context: A341211 A335518 A269347 * A229847 A196529 A110668
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved

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Last modified May 30 03:00 EDT 2024. Contains 372957 sequences. (Running on oeis4.)