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 A256802 Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1 0
 32, 312, 5891, 187203, 10791281, 1138136868, 215464267564, 73460897153458, 45244446929195903, 50270946310754652511, 100729046029931700116928, 364111018909574379029951571, 2374431276261700527941601475769 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A256810 LINKS Table of n, a(n) for n=1..13. EXAMPLE Some solutions for n=4 ..0..1..1..1..1..1....1..1..1..0..1..1....1..0..1..1..0..1....0..1..1..1..1..0 ..1..1..1..1..0..1....1..1..1..1..1..1....1..1..1..0..1..1....1..1..0..1..1..1 ..1..1..1..1..1..1....1..1..1..1..0..1....0..1..1..1..1..1....1..0..1..1..0..1 ..0..1..1..1..1..1....0..1..1..1..1..0....1..1..1..1..1..1....1..1..1..0..1..1 ..1..1..1..0..1..1....1..1..0..1..1..1....1..0..1..1..1..0....0..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..0..1 CROSSREFS Cf. A256810 Sequence in context: A061958 A050279 A096764 * A199532 A165004 A244867 Adjacent sequences: A256799 A256800 A256801 * A256803 A256804 A256805 KEYWORD nonn AUTHOR R. H. Hardin, Apr 10 2015 STATUS approved

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Last modified August 3 05:17 EDT 2024. Contains 374875 sequences. (Running on oeis4.)