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 A251989 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 or 5 5
 2735, 20011, 20011, 151635, 231559, 151635, 1182549, 3069283, 3069283, 1182549, 9375901, 43957515, 79998655, 43957515, 9375901, 75153161, 663814741, 2351304453, 2351304453, 663814741, 75153161, 607579255, 10354206421 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......2735.........20011...........151635...........1182549............9375901 ......20011........231559..........3069283..........43957515..........663814741 .....151635.......3069283.........79998655........2351304453........73509019463 ....1182549......43957515.......2351304453......143941074215......9220975438331 ....9375901.....663814741......73509019463.....9220975438331...1193233002253007 ...75153161...10354206421....2356741934027...598720936854481.155551233646772281 ..607579255..164646337261...76367982838785.39038339681025033 .4944443285.2648489572393.2486060084557113 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=1 k=4 ..0..0..0..2..0..0....0..0..0..0..0..2....0..0..0..2..0..2....0..0..0..2..0..2 ..0..0..0..2..2..2....0..0..2..0..2..1....0..0..0..2..0..0....2..2..2..0..2..2 ..0..0..0..0..2..2....2..2..0..0..0..0....2..0..0..0..0..2....2..2..2..0..0..0 CROSSREFS Sequence in context: A145647 A251946 A045155 * A251985 A297512 A297726 Adjacent sequences: A251986 A251987 A251988 * A251990 A251991 A251992 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Dec 12 2014 STATUS approved

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Last modified May 30 03:43 EDT 2023. Contains 363044 sequences. (Running on oeis4.)