The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A254774 Number of (n+2) X (7+2) 0..1 arrays with every 3 X 3 subblock sum of the two maximums of the central row and the central column and the two medians of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. 1

%I #6 Apr 17 2022 22:03:23

%S 2473062,17766805,399523689,8014352106,152665874129,3151627564633,

%T 66029963150922,1347645659065486,27693905833765209,571426630010331708,

%U 11760686264524554788,241923345626487645940,4982603226434478521757

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

%C Column 7 of A254775.

%H R. H. Hardin, <a href="/A254774/b254774.txt">Table of n, a(n) for n = 1..137</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A254775.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 07 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 June 17 21:09 EDT 2024. Contains 373464 sequences. (Running on oeis4.)