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 A217999 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..2 nXk array 5
 3, 9, 9, 25, 81, 25, 81, 729, 729, 81, 241, 6561, 19665, 6561, 241, 719, 59049, 531143, 531143, 59049, 719, 2181, 531441, 14345273, 43046713, 14345273, 531441, 2181, 6543, 4782969, 387332417, 3486751263, 3486751263, 387332417, 4782969, 6543 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....3........9..........25...........81..........241..........719 .....9.......81.........729.........6561........59049.......531441 ....25......729.......19665.......531143.....14345273....387332417 ....81.....6561......531143.....43046713...3486751263.282429513233 ...241....59049....14345273...3486751263.847279307713 ...719...531441...387332417.282429513233 ..2181..4782969.10458051407 ..6543.43046721 .19623 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for n=3 k=4 ..0..2..2..0....0..2..2..2....0..2..1..1....0..0..0..2....0..1..0..2 ..1..0..2..0....0..2..0..0....1..2..0..1....0..1..1..0....0..0..1..2 ..1..0..0..0....0..2..2..0....1..1..0..1....2..2..0..0....2..0..2..1 CROSSREFS Column 2 is 9^n, A001019 Sequence in context: A206957 A207989 A207221 * A207550 A207317 A206700 Adjacent sequences:  A217996 A217997 A217998 * A218000 A218001 A218002 KEYWORD nonn,tabl AUTHOR R. H. Hardin Oct 17 2012 STATUS approved

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Last modified October 14 01:36 EDT 2019. Contains 327994 sequences. (Running on oeis4.)