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A254508 Number of (n+2)X(4+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 1

%I #4 Jan 31 2015 12:54:55

%S 55904,238740,2038857,14550580,95905212,648678493,4179100619,

%T 26796334134,169905026025,1061834396584,6585983377072,40565200515478,

%U 248253246263334,1511192700970456,9157127405097292,55263188107282010,332319723214061319

%N Number of (n+2)X(4+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

%C Column 4 of A254512

%H R. H. Hardin, <a href="/A254508/b254508.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..1..1..1..1....0..1..0..1..0..1....1..1..0..0..1..1....1..1..1..1..1..1

%e ..0..1..0..1..1..1....1..1..0..1..1..0....0..0..1..0..1..1....0..0..0..0..0..1

%e ..1..1..1..0..0..0....0..0..0..1..1..1....1..0..1..0..0..1....1..1..0..1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 31 2015

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Last modified April 25 13:27 EDT 2024. Contains 371971 sequences. (Running on oeis4.)