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A208445 T(n,k)=Number of nXk 0..2 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it 8
3, 6, 6, 12, 28, 12, 24, 134, 134, 24, 48, 646, 1548, 646, 48, 96, 3118, 17992, 17992, 3118, 96, 192, 15052, 209542, 505000, 209542, 15052, 192, 384, 72662, 2440104, 14204032, 14204032, 2440104, 72662, 384, 768, 350776, 28421906, 399447742 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
...3......6........12...........24..............48.................96
...6.....28.......134..........646............3118..............15052
..12....134......1548........17992..........209542............2440104
..24....646.....17992.......505000........14204032..........399447742
..48...3118....209542.....14204032.......964650992........65501464340
..96..15052...2440104....399447742.....65501464340.....10739447120572
.192..72662..28421906..11236338658...4448918847452...1761292062009546
.384.350776.331022604.316042155314.302141687342136.288825066733828150
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..2..1....2..0..1....2..1..0....2..0..1....2..0..2....2..0..1....1..2..0
..2..1..2....0..1..0....0..1..1....0..1..2....1..2..1....0..1..2....2..1..1
..1..0..2....2..0..1....1..0..2....2..0..2....0..2..2....2..0..0....0..1..2
..2..2..0....0..2..2....2..2..0....0..1..1....1..0..2....1..0..1....2..1..2
CROSSREFS
Column 1 is A003945
Sequence in context: A066393 A127777 A307204 * A208796 A319867 A202931
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 26 2012
STATUS
approved

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)