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 A254797 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally 0
 512, 10484, 133628, 1075560, 11392932, 96309005, 434785178, 3136187330, 30303543958, 234245367914, 877645445528, 6616981844884, 66980680958670, 530577573194491 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A254804 LINKS Table of n, a(n) for n=1..14. EXAMPLE Some solutions for n=3 ..0..0..1..1..1....0..0..1..1..0....0..1..1..0..1....0..0..1..1..0 ..0..1..0..1..1....1..1..1..1..0....1..1..0..0..1....1..1..0..1..0 ..1..0..1..1..0....1..1..1..1..1....1..0..1..0..1....0..0..1..1..0 ..1..0..1..0..1....0..1..0..1..0....1..1..0..0..1....0..1..0..0..0 ..0..0..0..1..0....0..0..1..1..1....0..1..0..1..1....1..0..1..1..1 CROSSREFS Sequence in context: A247932 A090007 A344305 * A254837 A254560 A257182 Adjacent sequences: A254794 A254795 A254796 * A254798 A254799 A254800 KEYWORD nonn AUTHOR R. H. Hardin, Feb 08 2015 STATUS approved

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Last modified October 3 20:04 EDT 2023. Contains 365870 sequences. (Running on oeis4.)