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 A253985 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally and vertically 9
 512, 3372, 3372, 21304, 36434, 21304, 136868, 417518, 417518, 136868, 881432, 4858102, 8727838, 4858102, 881432, 5659548, 55806952, 179261149, 179261149, 55806952, 5659548, 36317408, 642845877, 3672381306, 6386040127, 3672381306 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......512........3372..........21304............136868..............881432 ......3372.......36434.........417518...........4858102............55806952 .....21304......417518........8727838.........179261149..........3672381306 ....136868.....4858102......179261149........6386040127........228352636069 ....881432....55806952.....3672381306......228352636069......14408056664402 ...5659548...642845877....75620185999.....8192431991746.....913950319279306 ..36317408..7415403315..1556452499274...293237386040072...57738786884410078 .233116252.85480006244.32027982651882.10498927207163381.3651898799311128482 LINKS R. H. Hardin, Table of n, a(n) for n = 1..198 FORMULA Empirical for column k: k=1: [linear recurrence of order 13] k=2: [order 41] k=3: [order 68] EXAMPLE Some solutions for n=2 k=4 ..1..0..0..1..1..0....1..0..0..1..1..0....1..1..1..1..0..0....0..1..0..1..1..0 ..0..0..0..1..1..0....0..0..0..1..1..0....0..0..0..1..0..1....0..0..0..0..1..0 ..0..0..0..0..1..0....0..0..0..1..0..0....1..0..1..1..1..0....1..0..0..0..1..1 ..0..0..1..0..1..0....0..0..1..1..1..1....1..0..1..1..0..1....1..1..0..1..1..0 CROSSREFS Sequence in context: A253544 A253537 A254390 * A253978 A250574 A016995 Adjacent sequences: A253982 A253983 A253984 * A253986 A253987 A253988 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 21 2015 STATUS approved

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Last modified December 3 22:01 EST 2023. Contains 367540 sequences. (Running on oeis4.)