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A203277 T(n,k)=Number of nXk 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor 8
1, 1, 1, 1, 36, 1, 1, 861, 861, 1, 1, 12783, 107968, 12783, 1, 1, 165993, 7849844, 7849844, 165993, 1, 1, 2229009, 525063657, 2590250609, 525063657, 2229009, 1, 1, 31121459, 38204132307, 805342647391, 805342647391, 38204132307, 31121459, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,5
COMMENTS
Table starts
.1.........1...............1....................1.........................1
.1........36.............861................12783....................165993
.1.......861..........107968..............7849844.................525063657
.1.....12783.........7849844...........2590250609..............805342647391
.1....165993.......525063657.........805342647391..........1126396980640358
.1...2229009.....38204132307......273475278673606.......1710751676209296372
.1..31121459...2854004857534....94164551870236956....2658493631378011835550
.1.435195718.209528571255971.31840186365984384473.4082511881983390614103873
LINKS
EXAMPLE
Some solutions for n=4 k=3
..4..5..2....4..5..2....0..0..4....2..2..0....5..0..4....5..4..1....1..5..1
..2..5..2....4..5..2....3..1..4....1..2..3....5..4..4....5..4..4....5..5..5
..1..5..2....5..5..2....3..5..4....5..4..3....5..0..4....5..0..4....4..3..2
..5..5..5....3..5..5....4..5..5....5..5..3....5..5..0....5..5..0....4..4..1
CROSSREFS
Sequence in context: A022071 A181635 A174673 * A156645 A330084 A350385
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Dec 31 2011
STATUS
approved

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Last modified June 16 19:52 EDT 2024. Contains 373432 sequences. (Running on oeis4.)