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!)
A269184 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three exactly once. 1

%I #4 Feb 20 2016 09:13:26

%S 1620,118032,12791896,1265974992,121792778352,11426543880704,

%T 1052109184130840,95454531912315856,8558619944786977592,

%U 760020559893342078688,66953271981144607663880,5858534813761786497448832

%N Number of nX6 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three exactly once.

%C Column 6 of A269186.

%H R. H. Hardin, <a href="/A269184/b269184.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..2..3..3..3..2..1. .3..2..3..1..1..0. .0..0..2..1..0..0. .1..0..0..2..2..2

%e ..3..3..3..3..3..3. .2..2..3..1..3..1. .2..2..0..0..0..2. .0..0..2..3..2..0

%Y Cf. A269186.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 20 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 April 19 04:35 EDT 2024. Contains 371782 sequences. (Running on oeis4.)