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!)
A203199 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,3,2,1,0,0,0 for x=0,1,2,3,4,5,6 0
1, 2, 8, 56, 631, 14218, 565370, 42020324, 5821586810, 1491023110987, 707175291089731 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 3'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 0's, every 5 is next to 5 0's, every 6 is next to 6 0's

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

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

........0..............0..............1..............1..............0

.......0.0............0.0............3.1............1.3............1.2

......0.5.0..........0.0.4..........2.1.0..........0.2.1..........3.2.2

.....0.0.4.0........0.5.0.0........2.2.0.0........0.2.2.0........1.1.0.0

....0.6.0.2.2......0.0.4.0.0......0.0.5.0.0......0.5.0.0.4......0.0.0.6.0

...2.0.0.1.2.0....0.6.0.2.1.1....2.2.0.0.6.0....4.0.0.6.0.0....0.5.5.0.0.0

..2.2.0.1.3.1.0..0.0.0.2.2.3.1..0.2.0.4.0.0.0..0.0.0.0.0.4.0..0.0.0.0.0.4.0

CROSSREFS

Sequence in context: A005439 A128814 A108208 * A302999 A135079 A084872

Adjacent sequences:  A203196 A203197 A203198 * A203200 A203201 A203202

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 30 2011

STATUS

approved

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 June 19 17:09 EDT 2021. Contains 345144 sequences. (Running on oeis4.)