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 A236035 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock 8
 81, 384, 384, 1848, 2460, 1848, 8856, 14980, 14980, 8856, 42724, 93640, 116786, 93640, 42724, 205660, 595416, 965344, 965344, 595416, 205660, 990076, 3752292, 8289258, 11384132, 8289258, 3752292, 990076, 4760380, 23516900, 68613596 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........81........384.........1848...........8856............42724 .......384.......2460........14980..........93640...........595416 ......1848......14980.......116786.........965344..........8289258 ......8856......93640.......965344.......11384132........135945364 .....42724.....595416......8289258......135945364.......2282216166 ....205660....3752292.....68613596.....1562942580......36483535032 ....990076...23516900....570818506....18041076392.....590896758666 ...4760380..147865936...4747089488...210792493144....9608835890536 ..22914572..931263424..39848021722..2453096266960..156707889598596 .110251484.5858644440.330427763000.28456755301120.2530161441550248 LINKS R. H. Hardin, Table of n, a(n) for n = 1..112 FORMULA Empirical for column k: k=1: [linear recurrence of order 10] k=2: [order 19] k=3: [order 92] for n>95 EXAMPLE Some solutions for n=3 k=4 ..0..1..1..2..2....0..2..1..2..1....0..1..1..2..2....0..0..1..1..2 ..0..1..0..0..2....0..2..1..0..2....0..2..1..2..2....0..1..0..1..2 ..0..0..2..0..1....1..0..1..0..0....2..2..0..1..0....2..2..1..0..1 ..1..1..1..0..0....0..0..2..1..2....0..0..0..1..1....0..2..1..2..0 CROSSREFS Sequence in context: A205909 A237843 A205737 * A236028 A233157 A237108 Adjacent sequences: A236032 A236033 A236034 * A236036 A236037 A236038 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 18 2014 STATUS approved

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Last modified June 21 14:35 EDT 2024. Contains 373547 sequences. (Running on oeis4.)