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 A237850 T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the maximum minus the lower median of every 2 X 2 subblock equal. 9
 81, 369, 369, 1697, 3419, 1697, 8451, 31661, 31661, 8451, 43061, 320263, 581994, 320263, 43061, 224559, 3281101, 11700943, 11700943, 3281101, 224559, 1184701, 34361837, 234481287, 468296881, 234481287, 34361837, 1184701, 6305583 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......81.........369...........1697..............8451................43061 ......369........3419..........31661............320263..............3281101 .....1697.......31661.........581994..........11700943............234481287 .....8451......320263.......11700943.........468296881..........18440768745 ....43061.....3281101......234481287.......18440768745........1409401703979 ...224559....34361837.....4792713430......740745901187......110206357256365 ..1184701...361511653....97664853059....29535151446365.....8519484749878247 ..6305583..3828421599..2001409956781..1184735457700027...663641017294498517 .33742677.40604391821.40948533459224.47377744512643629.51463680784470773221 LINKS R. H. Hardin, Table of n, a(n) for n = 1..144 FORMULA Empirical for column k: k=1: [linear recurrence of order 13], k=2: [order 29], k=3: [order 70]. EXAMPLE Some solutions for n=2, k=4 ..0..1..2..1..0....0..1..1..1..0....0..1..1..0..1....0..1..2..1..1 ..0..1..1..2..2....2..2..2..1..0....1..2..1..2..1....1..0..1..1..2 ..1..2..2..0..1....1..1..0..2..1....1..2..1..0..2....2..1..0..2..0 CROSSREFS Sequence in context: A205513 A017378 A205736 * A205917 A205909 A237843 Adjacent sequences: A237847 A237848 A237849 * A237851 A237852 A237853 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 14 2014 STATUS approved

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Last modified August 10 00:01 EDT 2024. Contains 375044 sequences. (Running on oeis4.)