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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A280121 Number of nX5 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1

%I #4 Dec 26 2016 07:57:56

%S 8,80,705,5802,44382,330254,2433834,17647668,127427398,911386034,

%T 6487266485,45903055338,323414190242,2268829556858,15859990696273,

%U 110499829152634,767646196512392,5318715907077010,36763571759250350

%N Number of nX5 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 5 of A280124.

%H R. H. Hardin, <a href="/A280121/b280121.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A280121/a280121.txt">Empirical recurrence of order 86</a>

%F Empirical recurrence of order 86 (see link above)

%e Some solutions for n=4

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

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

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

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

%Y Cf. A280124.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2016

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 12 03:51 EDT 2024. Contains 375085 sequences. (Running on oeis4.)