login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A253798 Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal median nondecreasing horizontally and vertically 1

%I

%S 299472,7346584,185592928,4147335800,83428823136,1622625002976,

%T 30656386352160,568945723307660,10495851739747904,193086512384856144,

%U 3546331731244538592,65097362541945328632,1194673554143281997888

%N Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal median nondecreasing horizontally and vertically

%C Column 5 of A253801

%H R. H. Hardin, <a href="/A253798/b253798.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 13 2015

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 23 01:49 EDT 2020. Contains 337962 sequences. (Running on oeis4.)