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 A285023 Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1. 0
 0, 2, 97, 6460, 3708321, 5075612300, 40651048407879, 1063834786036208904, 129443742138071637706453 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A285030. LINKS EXAMPLE Some solutions for n=4 ..0..1..0..1. .1..1..0..0. .0..1..0..1. .0..0..0..1. .0..1..1..1 ..1..1..1..0. .1..1..0..1. .1..1..0..0. .0..1..0..0. .1..1..0..0 ..0..0..0..1. .0..0..0..1. .1..1..0..0. .1..1..1..0. .0..0..1..0 ..0..0..1..0. .0..0..1..1. .1..0..1..0. .0..1..0..1. .1..0..0..0 CROSSREFS Cf. A285030. Sequence in context: A233767 A223936 A224083 * A232865 A173837 A036901 Adjacent sequences:  A285020 A285021 A285022 * A285024 A285025 A285026 KEYWORD nonn AUTHOR R. H. Hardin, Apr 08 2017 STATUS approved

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Last modified May 10 19:32 EDT 2021. Contains 343780 sequences. (Running on oeis4.)