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!)
A258515 Number of (5+2)X(n+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

%I #4 Jun 01 2015 11:39:35

%S 193488,1627220,21229200,230967748,2402910000,26456908324,

%T 291747299054,3169232915699,34516182107106,377219649437794,

%U 4116791239330390,44884889525809983,489574393014870220,5340890797932846496

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

%C Row 5 of A258511

%H R. H. Hardin, <a href="/A258515/b258515.txt">Table of n, a(n) for n = 1..165</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

%Y Cf. A258511

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 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 March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)