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 A254306 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically 8
 512, 2812, 2812, 12616, 18098, 12616, 54236, 93326, 93326, 54236, 236024, 460326, 517934, 460326, 236024, 1021428, 2313072, 2530381, 2530381, 2313072, 1021428, 4351908, 11552577, 13348182, 9867433, 13348182, 11552577, 4351908, 18369164 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......512.......2812.......12616.......54236.......236024......1021428 ......2812......18098.......93326......460326......2313072.....11552577 .....12616......93326......517934.....2530381.....13348182.....69860227 .....54236.....460326.....2530381.....9867433.....43077907....170114970 ....236024....2313072....13348182....43077907....201263574....821922862 ...1021428...11552577....69860227...170114970....821922862...2586900868 ...4351908...57873415...375506912...668843106...3675487170...8957909107 ..18369164..290073742..2051413540..2655696397..18140259210..36351177418 ..77344420.1451688456.11310694254.10186556028..87601779910.119487334237 .325241108.7262959692.62889999700.39428714311.447277560513.419660707762 LINKS R. H. Hardin, Table of n, a(n) for n = 1..881 FORMULA Empirical for column k: k=1: [linear recurrence of order 17] k=2: [order 32] for n>37 k=3: [order 41] for n>47 k=4: [order 41] for n>51 k=5: [order 48] for n>62 k=6: [order 54] for n>71 k=7: [order 66] for n>86 EXAMPLE Some solutions for n=2 k=4 ..0..1..0..0..0..1....0..1..1..1..1..0....0..0..1..1..0..1....0..1..1..0..1..0 ..0..0..0..0..0..1....0..0..0..0..0..1....0..0..0..0..0..0....0..1..0..0..1..1 ..1..0..0..1..1..0....0..0..1..1..0..0....1..0..0..0..1..0....0..1..0..1..0..0 ..1..1..0..0..0..0....1..1..1..1..1..1....0..1..1..0..1..1....0..1..0..1..0..1 CROSSREFS Column 1 is A254253 Sequence in context: A250820 A250497 A254260 * A258530 A254922 A254253 Adjacent sequences:  A254303 A254304 A254305 * A254307 A254308 A254309 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 27 2015 STATUS approved

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Last modified December 8 21:59 EST 2021. Contains 349596 sequences. (Running on oeis4.)