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 A266018 Number of n X n integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself. 0
 1, 7, 33, 577, 39064, 4285397, 1577145547, 1561479265416 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A266025. LINKS EXAMPLE Some solutions for n=4 ..2..1..0..0....1..1..1..0....1..1..1..0....1..0..2..0....1..1..2..0 ..1..2..0..0....0..1..1..2....0..1..1..1....2..1..1..2....0..2..1..2 ..0..0..2..1....2..1..1..0....1..1..1..1....2..1..1..2....0..2..1..0 ..0..0..1..2....0..1..1..1....2..0..2..0....0..2..0..1....0..2..1..1 CROSSREFS Cf. A266025. Sequence in context: A197565 A202762 A202757 * A001795 A336277 A209897 Adjacent sequences:  A266015 A266016 A266017 * A266019 A266020 A266021 KEYWORD nonn AUTHOR R. H. Hardin, Dec 20 2015 STATUS approved

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Last modified September 24 01:21 EDT 2020. Contains 337315 sequences. (Running on oeis4.)