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 A220109 T(n,k)=Number of nXk arrays of the minimum or maximum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nXk array 3
 4, 16, 16, 56, 256, 56, 250, 4020, 4020, 250, 984, 64862, 252520, 64862, 984, 3888, 1029672, 16187862, 16187862, 1029672, 3888, 15798, 16468836, 1028824446, 4160361190, 1028824446, 16468836, 15798, 63092, 262860066, 65676456950 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....4.......16.........56........250........984........3888.....15798.63092 ....16......256.......4020......64862....1029672....16468836.262860066 ....56.....4020.....252520...16187862.1028824446.65676456950 ...250....64862...16187862.4160361190 ...984..1029672.1028824446 ..3888.16468836 .15798 LINKS Table of n, a(n) for n=1..31. EXAMPLE Some solutions for n=3 k=4 ..0..0..2..3....0..0..0..2....1..0..1..3....0..0..0..2....0..0..2..1 ..0..0..3..2....0..0..3..1....0..0..2..1....0..0..3..1....0..0..0..2 ..0..1..1..1....0..0..1..3....0..0..2..1....1..0..3..0....1..3..0..0 CROSSREFS Sequence in context: A223801 A336938 A232516 * A207283 A207479 A207535 Adjacent sequences: A220106 A220107 A220108 * A220110 A220111 A220112 KEYWORD nonn,tabl AUTHOR R. H. Hardin Dec 05 2012 STATUS approved

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Last modified August 13 00:55 EDT 2024. Contains 375113 sequences. (Running on oeis4.)