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 A258506 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the medians of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
 10762, 62096, 425880, 3064020, 21229200, 147424970, 1030931222, 7213265988, 50406135414, 352268263599, 2462421098294, 17213808196491, 120330118364382, 841144197827542, 5879904189348622, 41102758742106076, 287323364592421812 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A258511 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..1..1..1..1..0....0..1..0..1..0....1..1..1..0..1....0..1..1..1..1 ..1..1..1..1..0....0..0..0..0..0....0..1..1..1..0....0..0..0..1..1 ..1..0..1..1..1....0..0..0..0..1....0..1..1..1..0....0..0..0..0..1 ..1..1..1..0..0....1..1..1..0..0....1..1..1..1..1....0..0..1..0..0 CROSSREFS Cf. A258511 Sequence in context: A146320 A211607 A258513 * A254993 A023084 A325885 Adjacent sequences:  A258503 A258504 A258505 * A258507 A258508 A258509 KEYWORD nonn AUTHOR R. H. Hardin, Jun 01 2015 STATUS approved

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Last modified August 17 05:07 EDT 2022. Contains 356184 sequences. (Running on oeis4.)