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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A257156 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I

%S 13504,101227,732482,5352986,40203005,303570406,2272933686,

%T 16956110702,126194739903,937418918510,6952450459180,51515862833060,

%U 381469904772233,2823533969222054,20892921311894352,154570404973505912

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

%C Row 3 of A257154

%H R. H. Hardin, <a href="/A257156/b257156.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

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

%Y Cf. A257154

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 16 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 August 8 18:52 EDT 2022. Contains 356016 sequences. (Running on oeis4.)