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 A194934 Number of lower triangles of a 5 X 5 0..n array with no element differing from any of its horizontal or vertical neighbors by more than one. 1
 32768, 344091, 882318, 1481501, 2089736, 2698979, 3308286, 3917595, 4526904, 5136213, 5745522, 6354831, 6964140, 7573449, 8182758, 8792067, 9401376, 10010685, 10619994, 11229303, 11838612, 12447921, 13057230, 13666539, 14275848 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A194931. LINKS R. H. Hardin, Table of n, a(n) for n = 1..200 FORMULA Empirical: a(n) = 609309*n - 956877 for n>6. Empirical g.f.: x*(32768 + 278555*x + 226904*x^2 + 60956*x^3 + 9052*x^4 + 1008*x^5 + 64*x^6+ 2*x^7) / (1 - x)^2. - Colin Barker, May 05 2018 EXAMPLE Some solutions for n=2: ..1..........2..........1..........0..........2..........0..........1 ..0.0........1.1........2.1........1.1........1.0........1.1........2.1 ..1.0.1......0.1.1......2.1.1......1.1.1......2.1.1......2.1.1......1.1.0 ..2.1.1.1....1.2.1.1....2.1.1.1....2.1.1.1....2.2.1.1....1.0.1.1....1.0.0.1 ..2.2.2.1.1..1.1.0.1.1..1.1.1.2.2..2.1.0.1.2..2.2.1.1.1..2.1.1.2.1..1.0.1.2.2 CROSSREFS Cf. A194931. Sequence in context: A069276 A195235 A223335 * A016997 A017069 A017261 Adjacent sequences: A194931 A194932 A194933 * A194935 A194936 A194937 KEYWORD nonn AUTHOR R. H. Hardin, Sep 05 2011 STATUS approved

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Last modified October 1 07:13 EDT 2023. Contains 365812 sequences. (Running on oeis4.)