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 A254504 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 0
 512, 12324, 373348, 14550580, 801430034, 70328373238, 8348810077730, 1556719261083451, 442940186438236832, 188746754389519521309 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A254512 LINKS EXAMPLE Some solutions for n=2 ..0..0..0..0....1..0..0..0....1..1..0..1....1..0..0..1....1..0..0..1 ..0..0..0..0....0..0..1..0....0..0..1..1....1..1..1..1....0..1..1..1 ..1..0..0..1....0..1..1..0....0..1..1..1....0..1..1..1....0..1..0..1 ..0..0..1..1....1..0..0..1....0..1..1..1....0..1..0..1....0..0..1..1 CROSSREFS Sequence in context: A200844 A254475 A254768 * A253812 A256947 A254720 Adjacent sequences: A254501 A254502 A254503 * A254505 A254506 A254507 KEYWORD nonn AUTHOR R. H. Hardin, Jan 31 2015 STATUS approved

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Last modified February 4 19:33 EST 2023. Contains 360059 sequences. (Running on oeis4.)