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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A254516 Number of (5+2)X(n+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 13:00:26

%S 221858,1731335,13015622,95905212,801430034,6552192968,52092582762,

%T 414195302102,3267664893694,25620128426624,199502861018784,

%U 1551135290302456,12013242353953978,92891646744731958,716518252995935278

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

%H R. H. Hardin, <a href="/A254516/b254516.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 31 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.

Last modified May 29 01:10 EDT 2023. Contains 363029 sequences. (Running on oeis4.)