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 A255093 Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 1 and no column sum 1 0
 36, 189, 1838, 25413, 554091, 19198366, 1018478173, 83424236667, 10600414554200, 2073988286314137, 624690506094584769, 290291489884708296332, 207973048180805421940626, 229556436731155431563064899 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A255101 LINKS Table of n, a(n) for n=1..14. EXAMPLE Some solutions for n=4 ..1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..1....1..1..0..1..1..1 ..0..1..1..1..1..1....1..1..1..1..1..0....0..0..0..0..0..0....1..0..1..1..1..1 ..1..1..1..0..1..1....1..1..1..0..1..1....1..1..1..1..1..1....0..1..1..1..1..1 ..1..1..1..1..1..0....1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..0..1 ..0..1..1..1..0..1....1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..1 ..1..1..1..0..1..1....1..1..1..1..0..1....1..1..1..1..1..0....1..1..1..1..1..1 CROSSREFS Cf. A255101 Sequence in context: A211744 A211753 A211764 * A017138 A339981 A304378 Adjacent sequences: A255090 A255091 A255092 * A255094 A255095 A255096 KEYWORD nonn AUTHOR R. H. Hardin, Feb 14 2015 STATUS approved

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Last modified September 25 11:40 EDT 2023. Contains 365644 sequences. (Running on oeis4.)