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 A231302 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order 9
 1, 2, 2, 4, 5, 4, 12, 16, 16, 12, 32, 51, 69, 51, 32, 92, 174, 301, 301, 174, 92, 264, 617, 1414, 1934, 1414, 617, 264, 756, 2223, 6850, 12150, 12150, 6850, 2223, 756, 2176, 8051, 33316, 78028, 103456, 78028, 33316, 8051, 2176, 6252, 29220, 162796, 503290 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ....1......2.......4........12.........32...........92...........264 ....2......5......16........51........174..........617..........2223 ....4.....16......69.......301.......1414.........6850.........33316 ...12.....51.....301......1934......12150........78028........503290 ...32....174....1414.....12150.....103456.......894318.......7795257 ...92....617....6850.....78028.....894318.....10359556.....122696560 ..264...2223...33316....503290....7795257....122696560....1965819189 ..756...8051..162796...3300161...68850102...1465475351...31830949407 .2176..29220..797293..21613114..608914401..17557687250..517419330480 .6252.106109.3906788.142211597.5409898598.211100299699.8451367403478 LINKS R. H. Hardin, Table of n, a(n) for n = 1..180 FORMULA Empirical for column k: k=1: a(n) = 2*a(n-1) +3*a(n-2) -4*a(n-4) k=2: [order 8] for n>9 k=3: [order 14] for n>16 k=4: [order 44] for n>48 EXAMPLE Some solutions for n=4 k=4 ..0..1..1..1..1....0..0..0..0..0....0..0..1..1..1....0..1..1..1..1 ..0..1..1..1..0....0..1..1..0..0....0..0..1..1..1....0..1..1..1..0 ..0..0..0..0..0....1..1..1..0..0....0..0..1..1..1....0..1..1..0..0 ..0..0..0..1..1....1..1..2..2..2....0..0..0..1..1....0..0..0..0..0 ..0..0..1..1..1....1..2..2..2..2....0..0..0..1..1....0..0..0..0..0 CROSSREFS Sequence in context: A229402 A266249 A276299 * A231363 A225840 A319409 Adjacent sequences:  A231299 A231300 A231301 * A231303 A231304 A231305 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Nov 07 2013 STATUS approved

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Last modified October 19 13:01 EDT 2019. Contains 328222 sequences. (Running on oeis4.)