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 A237308 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the upper median of every 2X2 subblock equal 9
 81, 435, 435, 2174, 5433, 2174, 11545, 60958, 60958, 11545, 61055, 731603, 1415117, 731603, 61055, 326262, 8680769, 36167196, 36167196, 8680769, 326262, 1745153, 103860036, 901210126, 2009833839, 901210126, 103860036, 1745153, 9357963 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......81.........435...........2174.............11545................61055 .....435........5433..........60958............731603..............8680769 ....2174.......60958........1415117..........36167196............901210126 ...11545......731603.......36167196........2009833839.........108105728913 ...61055.....8680769......901210126......108105728913.......12453653921528 ..326262...103860036....22791851729.....5924015749908.....1470245290038872 .1745153..1241171131...575227568134...323852801203185...173172498170107173 .9357963.14853266129.14576482693268.17797884221279895.20549153283999881019 LINKS R. H. Hardin, Table of n, a(n) for n = 1..199 FORMULA Empirical for column k: k=1: [linear recurrence of order 9] k=2: [order 17] k=3: [order 38] k=4: [order 87] EXAMPLE Some solutions for n=2 k=4 ..0..1..0..0..1....0..1..0..0..2....0..0..0..1..1....0..0..2..0..1 ..0..1..1..1..2....1..2..1..1..1....2..1..1..1..1....1..1..1..1..1 ..1..0..2..0..0....1..0..0..2..1....0..1..2..1..2....0..1..1..1..0 CROSSREFS Sequence in context: A235417 A237391 A237385 * A237301 A237945 A237938 Adjacent sequences:  A237305 A237306 A237307 * A237309 A237310 A237311 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 06 2014 STATUS approved

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Last modified January 17 20:36 EST 2020. Contains 330987 sequences. (Running on oeis4.)