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A236492 Number of (3+1)X(n+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise 1
3987, 155757, 5674353, 192914141, 6339553813, 203305266809, 6427794669445, 201375421778023, 6274232672775171, 194827196856217011, 6037567602862110457, 186874971787940452515, 5780049775125380399529, 178702607037250489608337 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 3 of A236490
LINKS
EXAMPLE
Some solutions for n=2
..0..1..2....0..1..0....1..1..1....1..1..0....2..0..2....1..0..1....0..0..1
..2..0..1....2..1..2....2..2..1....2..1..2....1..1..0....2..2..0....1..2..2
..0..0..2....2..0..2....1..2..1....1..1..0....0..0..1....1..1..0....2..0..0
..2..1..0....0..2..2....1..2..1....2..1..1....1..1..0....1..1..1....2..2..2
CROSSREFS
Sequence in context: A229382 A159218 A159216 * A236487 A235434 A200848
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2014
STATUS
approved

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Last modified March 4 10:39 EST 2024. Contains 370528 sequences. (Running on oeis4.)