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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A236078 Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise 1

%I #6 Aug 11 2014 22:46:08

%S 576,9979,169680,2634205,40097396,587963980,8523145663,121700475056,

%T 1728432778182,24403460015028,343787025890344,4832490504998260,

%U 67872153417285885,952512927560219600,13363621591424552478

%N Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise

%C Column 2 of A236082

%H R. H. Hardin, <a href="/A236078/b236078.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A236078/a236078.txt">Empirical recurrence of order 82</a>

%F Empirical recurrence of order 82 (see link above)

%e Some solutions for n=3

%e ..0..0..1....0..0..1....0..0..0....2..0..2....0..1..0....0..1..0....1..0..1

%e ..0..1..1....0..0..2....1..1..0....1..2..1....0..2..0....0..0..0....0..0..1

%e ..1..2..1....1..1..0....0..1..1....0..2..2....2..1..1....1..2..0....0..2..0

%e ..2..1..2....1..1..2....0..1..2....1..1..1....0..1..2....0..2..0....1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 19 2014

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 July 22 23:01 EDT 2024. Contains 374544 sequences. (Running on oeis4.)