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 A254899 Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
 512, 5939, 24358, 90730, 61769, 20173, 10974, 9502, 9786, 10684, 11306, 12389, 14071, 15851, 17548, 19615, 21845, 24471, 27314, 30062, 33061, 36462, 39973, 43983, 48170, 52340, 56779, 61849, 67336, 72915, 78565, 84669, 91465, 98853, 106014 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A254907 LINKS R. H. Hardin, Table of n, a(n) for n = 1..42 EXAMPLE Some solutions for n=4 ..0..0..0..0..0..1....0..0..0..0..0..0....0..1..0..0..0..0....0..1..0..0..1..0 ..1..0..0..1..1..0....0..0..0..0..0..0....0..1..0..1..1..0....0..0..0..0..0..1 ..0..0..0..0..0..0....0..0..0..0..0..0....0..1..0..0..1..1....0..0..0..0..0..1 ..0..1..1..1..1..1....0..0..0..0..0..1....1..1..1..0..1..1....0..0..1..1..1..0 ..0..1..1..1..1..1....0..0..0..0..1..1....1..0..1..0..1..1....1..0..0..0..1..0 ..1..1..1..1..1..1....1..1..1..1..1..1....0..0..1..1..1..1....0..1..1..1..0..1 CROSSREFS Sequence in context: A061209 A017259 A017367 * A258999 A253833 A017487 Adjacent sequences: A254896 A254897 A254898 * A254900 A254901 A254902 KEYWORD nonn AUTHOR R. H. Hardin, Feb 10 2015 STATUS approved

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Last modified September 26 04:29 EDT 2023. Contains 365653 sequences. (Running on oeis4.)