login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A254592 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I

%S 6117882,113625185,2204567802,49094787979,1242236438386,

%T 30739517451493,738710766470176,17573978066643349,414123911196490073,

%U 9680320709184095679,225164393471054024086,5220345026451776105837

%N Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Row 7 of A254586

%H R. H. Hardin, <a href="/A254592/b254592.txt">Table of n, a(n) for n = 1..180</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 01 2015

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 20 08:03 EDT 2022. Contains 353852 sequences. (Running on oeis4.)