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 A253532 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically 1
 291511, 416901, 700492, 2008246, 3362641, 8304638, 14461240, 32033588, 59607552, 124813784, 242121763, 493771928, 974611910, 1961963209, 3893098180, 7782225094, 15452647455, 30765684442, 61058042269, 121308073001 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A253533 LINKS R. H. Hardin, Table of n, a(n) for n = 1..190 FORMULA Empirical: a(n) = 16*a(n-1) -112*a(n-2) +434*a(n-3) -916*a(n-4) +502*a(n-5) +2746*a(n-6) -8150*a(n-7) +8147*a(n-8) +6042*a(n-9) -27170*a(n-10) +28424*a(n-11) +5168*a(n-12) -45220*a(n-13) +45220*a(n-14) -1292*a(n-15) -39083*a(n-16) +37316*a(n-17) -6612*a(n-18) -15902*a(n-19) +15716*a(n-20) -5170*a(n-21) -1726*a(n-22) +2626*a(n-23) -1319*a(n-24) +370*a(n-25) -58*a(n-26) +4*a(n-27) for n>52 EXAMPLE Some solutions for n=1 ..0..0..0..1..1..1..2..1....2..0..1..1..2..0..1..2....1..0..0..1..2..0..0..1 ..1..1..0..2..1..0..1..0....0..1..1..0..1..0..1..0....0..0..0..1..2..1..0..2 CROSSREFS Sequence in context: A068241 A250618 A252992 * A233988 A287048 A168500 Adjacent sequences: A253529 A253530 A253531 * A253533 A253534 A253535 KEYWORD nonn AUTHOR R. H. Hardin, Jan 03 2015 STATUS approved

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Last modified March 25 22:04 EDT 2023. Contains 361529 sequences. (Running on oeis4.)