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 A254383 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
 512, 35529, 8533796, 6208345944, 14008701570284, 99661265319327258, 2165666188993340904078, 146977323440908911644985083, 30949376415040215031162843169020, 20149875590838758609564635874891385665 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A254390 LINKS R. H. Hardin, Table of n, a(n) for n = 1..13 EXAMPLE Some solutions for n=2 ..1..1..0..1....0..1..0..1....0..1..1..1....0..1..0..1....0..1..1..1 ..1..0..1..1....0..1..1..0....0..1..0..1....1..1..0..0....0..1..0..1 ..0..1..1..0....1..0..0..0....0..0..1..0....0..0..0..1....0..1..0..1 ..0..1..1..0....1..1..1..0....1..0..1..1....1..1..0..0....0..1..1..0 CROSSREFS Sequence in context: A253864 A308815 A253536 * A253977 A254084 A284033 Adjacent sequences:  A254380 A254381 A254382 * A254384 A254385 A254386 KEYWORD nonn AUTHOR R. H. Hardin, Jan 29 2015 STATUS approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)