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 A206659 T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly two ways, and new values 0..1 introduced in row major order 9
 102, 390, 390, 1517, 1769, 1517, 5805, 8374, 8374, 5805, 22346, 39928, 50529, 39928, 22346, 86251, 190577, 305347, 305347, 190577, 86251, 332419, 910169, 1839784, 2324028, 1839784, 910169, 332419, 1281181, 4345011, 11172263, 17859249 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....102......390......1517.......5805........22346.........86251 .....390.....1769......8374......39928.......190577........910169 ....1517.....8374.....50529.....305347......1839784......11172263 ....5805....39928....305347....2324028.....17859249.....138177925 ...22346...190577...1839784...17859249....175401820....1731487818 ...86251...910169..11172263..138177925...1731487818...21966491761 ..332419..4345011..67724531.1063970081..17082121522..278034719471 .1281181.20745372.410177144.8203665888.168628106667.3516414118117 LINKS R. H. Hardin, Table of n, a(n) for n = 1..144 EXAMPLE Some solutions for n=4 k=3 ..0..1..1..0..0....0..1..1..0..0....0..0..1..0..1....0..1..0..1..1 ..1..1..1..0..1....0..0..1..1..1....1..1..1..0..0....1..1..1..1..1 ..0..1..0..0..0....0..0..1..1..0....0..1..1..0..1....0..1..0..0..0 ..1..1..0..0..1....1..0..0..0..0....1..1..0..0..0....1..1..0..1..1 ..1..1..0..1..1....1..0..0..1..0....1..1..1..1..1....0..0..0..0..1 ..0..1..1..1..1....1..1..0..1..1....0..1..0..0..1....0..1..0..1..0 CROSSREFS Sequence in context: A204860 A277459 A127655 * A206652 A158127 A231361 Adjacent sequences: A206656 A206657 A206658 * A206660 A206661 A206662 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 11 2012 STATUS approved

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Last modified August 6 14:11 EDT 2024. Contains 374974 sequences. (Running on oeis4.)