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!)
A250595 Number of (n+2)X(2+2) 0..2 arrays with nondecreasing sum of every three consecutive values in every row and column 1

%I

%S 157464,2099520,27993600,373248000,2592000000,18000000000,

%T 125000000000,590625000000,2790703125000,13186072265625,

%U 48243443062500,176506677018000,645779095649856,1968088672456704,5997984525582336

%N Number of (n+2)X(2+2) 0..2 arrays with nondecreasing sum of every three consecutive values in every row and column

%C Column 2 of A250601

%H R. H. Hardin, <a href="/A250595/b250595.txt">Table of n, a(n) for n = 1..80</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 25 2014

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 September 17 06:16 EDT 2021. Contains 347478 sequences. (Running on oeis4.)