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 A254553 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 14
 512, 2696, 2696, 12260, 9292, 12260, 47140, 34780, 39661, 47140, 170504, 111443, 129677, 128366, 170504, 586508, 375458, 388056, 380406, 443179, 586508, 1964388, 1206693, 1194944, 1193965, 1191782, 1412248, 1964388, 6462708, 3894656, 3557566 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ......512......2696.....12260.....47140.....170504.....586508....1964388 .....2696......9292.....34780....111443.....375458....1206693....3894656 ....12260.....39661....129677....388056....1194944....3557566...10792398 ....47140....128366....380406...1193965....3638432...11160591...32790229 ...170504....443179...1191782...3450189....8246808...22508196...59892062 ...586508...1412248...3475823...9912158...22791266...64180262..174169154 ..1964388...4537801..10616893..27729322...59711718..159929222..479026957 ..6462708..14148124..30951404..76395530..169166380..422261032.1214424748 .21003228..44000373..91111523.209879361..447759396.1101303388.3174330616 .67662328.134814295.263691372.578181034.1237374354.3062450549.8371947986 LINKS R. H. Hardin, Table of n, a(n) for n = 1..422 FORMULA Empirical for column k: k=1: [linear recurrence of order 27] for n>32 k=2: [order 52] for n>59 k=3: [order 91] for n>95 Empirical for row n: n=1: [linear recurrence of order 27] for n>32 n=2: [order 54] for n>62 EXAMPLE Some solutions for n=3 k=4 ..0..0..0..1..1..1....0..0..0..0..0..1....0..0..1..0..0..0....0..0..0..0..0..1 ..1..1..1..1..1..1....1..0..0..1..1..0....0..0..0..0..1..0....0..0..0..1..1..1 ..1..0..0..0..0..0....0..0..1..1..0..1....1..0..0..0..0..0....0..0..0..1..0..1 ..0..1..1..1..1..1....0..0..0..0..0..0....1..1..1..1..1..1....1..1..1..1..1..0 ..1..1..0..1..1..1....0..0..1..1..0..1....1..0..0..1..1..1....1..0..0..1..1..1 CROSSREFS Column 1 and row 1 are A254476 Sequence in context: A186840 A224643 A186832 * A254483 A254476 A254804 Adjacent sequences: A254550 A254551 A254552 * A254554 A254555 A254556 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 01 2015 STATUS approved

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Last modified December 9 11:21 EST 2022. Contains 358700 sequences. (Running on oeis4.)