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A254509 Number of (n+2)X(5+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 12:55:36

%S 221858,1038340,11441442,98841764,801430034,6835294784,55061190276,

%T 443132699990,3548806179198,28004471288892,219764836858824,

%U 1716345354165074,13325759380833098,102994137524770445

%N Number of (n+2)X(5+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 5 of A254512

%H R. H. Hardin, <a href="/A254509/b254509.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 31 2015

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)