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 A253993 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 14
 512, 2736, 2736, 11872, 13188, 11872, 51856, 68176, 71116, 51856, 222400, 350496, 477856, 406183, 222400, 914112, 1738927, 3060398, 3678188, 2136758, 914112, 3644672, 8730836, 20022358, 30663580, 25361960, 11055001, 3644672, 14254784 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......512.......2736.......11872.........51856.........222400...........914112 .....2736......13188.......68176........350496........1738927..........8730836 ....11872......71116......477856.......3060398.......20022358........133063670 ....51856.....406183.....3678188......30663580......266574705.......2365554897 ...222400....2136758....25361960.....271991670.....3087530706......36583132201 ...914112...11055001...175815629....2421183428....36681094867.....592324411676 ..3644672...57285940..1239374238...22204822621...455476058266...10020346952054 .14254784..292920515..8586595803..200874606941..5538766707221..165655419206274 .54856896.1484002479.59232122744.1804016250888.66868897093260.2726242788022844 LINKS R. H. Hardin, Table of n, a(n) for n = 1..178 FORMULA Empirical for column k: k=1: [linear recurrence of order 22] k=3: [order 92] for n>99 Empirical for row n: n=1: [same linear recurrence of order 22] EXAMPLE Some solutions for n=2 k=4 ..0..0..0..0..1..0....0..0..0..1..0..0....0..0..0..0..1..1....0..0..0..0..1..0 ..1..1..0..0..1..1....1..1..0..1..1..1....0..0..0..0..1..1....0..0..0..0..1..0 ..0..1..0..0..1..1....1..1..0..0..1..0....0..0..1..1..1..1....0..0..0..1..1..0 ..0..0..1..1..0..1....0..0..1..1..1..0....1..0..1..1..1..1....1..0..0..1..0..0 CROSSREFS Sequence in context: A254512 A254819 A254505 * A258910 A253986 A250826 Adjacent sequences: A253990 A253991 A253992 * A253994 A253995 A253996 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 21 2015 STATUS approved

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Last modified December 8 01:51 EST 2022. Contains 358672 sequences. (Running on oeis4.)