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 A236704 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the maximum plus the lower median minus the upper median of every 2X2 subblock 7
 81, 426, 426, 2285, 3188, 2285, 12076, 23788, 23788, 12076, 64277, 178232, 259396, 178232, 64277, 340944, 1338314, 2832926, 2832926, 1338314, 340944, 1814328, 10041714, 31409880, 46692992, 31409880, 10041714, 1814328, 9631020, 75235940 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........81.........426..........2285..........12076...........64277 .......426........3188.........23788.........178232.........1338314 ......2285.......23788........259396........2832926........31409880 .....12076......178232.......2832926.......46692992.......775050154 .....64277.....1338314......31409880......775050154.....19605710895 ....340944....10041714.....343725916....12823407292....488730626484 ...1814328....75235940....3791095422...211713828688..12281928596332 ...9631020...563994510...41527455416..3511115688000.307621332573176 ..51194672..4230366698..459098074574.58239156471582 .271870052.31726827262.5029066110784 LINKS R. H. Hardin, Table of n, a(n) for n = 1..84 FORMULA Empirical for column k: k=1: [linear recurrence of order 13] k=2: [order 36] for n>37 EXAMPLE Some solutions for n=2 k=4 ..1..0..1..0..1....0..2..0..2..2....1..2..0..0..1....0..0..0..2..2 ..0..2..1..1..0....1..1..2..0..1....0..0..0..0..0....2..2..0..2..0 ..0..2..0..0..2....1..0..1..2..1....0..2..2..0..0....2..2..1..1..0 CROSSREFS Sequence in context: A238173 A206407 A236610 * A236604 A236698 A235421 Adjacent sequences:  A236701 A236702 A236703 * A236705 A236706 A236707 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 30 2014 STATUS approved

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Last modified May 28 15:33 EDT 2020. Contains 334684 sequences. (Running on oeis4.)