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 A237175 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock equal 7
 256, 1696, 1696, 11242, 25384, 11242, 79688, 370670, 370670, 79688, 571176, 5876404, 11560002, 5876404, 571176, 4149488, 93633848, 398902424, 398902424, 93633848, 4149488, 30302376, 1522516754, 13627618416, 30813347734 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......256........1696..........11242.............79688...............571176 .....1696.......25384.........370670...........5876404.............93633848 ....11242......370670.......11560002.........398902424..........13627618416 ....79688.....5876404......398902424.......30813347734........2332744838828 ...571176....93633848....13627618416.....2332744838828......385253068529754 ..4149488..1522516754...478901830764...183424213259920....66811807395192508 .30302376.24903561376.16855150746170.14401855281551812.11495860816900333298 LINKS R. H. Hardin, Table of n, a(n) for n = 1..97 FORMULA Empirical for column k: k=1: [linear recurrence of order 27] k=2: [order 75] EXAMPLE Some solutions for n=2 k=4 ..0..0..2..2..3....0..0..2..0..2....0..0..1..1..1....0..0..1..0..1 ..0..1..2..3..2....1..1..2..3..3....1..1..2..0..2....1..0..0..0..0 ..1..2..3..2..0....2..1..2..0..2....0..2..1..2..3....0..1..0..1..0 CROSSREFS Sequence in context: A238065 A237538 A237532 * A237169 A237936 A237931 Adjacent sequences: A237172 A237173 A237174 * A237176 A237177 A237178 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 04 2014 STATUS approved

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Last modified December 10 22:05 EST 2023. Contains 367717 sequences. (Running on oeis4.)