The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A198158 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,3,2,1,2,2,0 for x=0,1,2,3,4,5,6 0

%I #4 Mar 31 2012 12:36:33

%S 1,2,17,113,2211,79220,4456377,560699301,127364497803,52948639902295

%N Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,3,2,1,2,2,0 for x=0,1,2,3,4,5,6

%C Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 2's, every 5 is next to 5 2's, every 6 is next to 6 0's

%e Some solutions with all values from 0 to 6 for 7X7X7

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

%e .......0.0............2.2............0.0............3.1............1.3

%e ......0.6.0..........2.5.2..........0.6.0..........1.2.2..........2.2.1

%e .....0.0.0.0........2.4.2.0........0.0.0.0........0.2.5.2........2.5.2.0

%e ....1.2.2.2.2......2.5.2.0.0......2.2.2.2.1......0.0.2.4.2......2.4.2.0.0

%e ...3.2.5.4.5.2....1.2.2.0.6.0....2.5.4.5.2.3....0.6.0.2.5.2....2.5.2.0.6.0

%e ..1.1.2.2.2.2.0..1.3.1.0.0.0.0..0.2.2.2.2.1.1..0.0.0.0.2.2.0..0.2.2.0.0.0.0

%K nonn

%O 1,2

%A _R. H. Hardin_ Oct 21 2011

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 June 18 23:53 EDT 2024. Contains 373490 sequences. (Running on oeis4.)