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!)
A197951 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,5,3,0,0,1,0 for x=0,1,2,3,4,5,6 0
1, 1, 7, 72, 1045, 34736, 2260659, 267327524, 64601028921, 30441597686957 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

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

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

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

........0..............0..............0..............0..............0

.......1.1............0.4............0.0............0.4............1.1

......1.5.1..........0.0.0..........0.6.0..........0.0.0..........1.5.1

.....0.1.3.0........0.0.6.0........0.0.0.0........0.6.0.0........0.3.1.0

....0.0.0.0.3......1.1.0.0.0......4.0.3.1.1......0.0.0.1.1......0.0.0.3.0

...0.0.6.0.2.0....1.5.3.0.0.3....0.0.3.2.5.1....3.0.0.3.5.1....0.6.0.4.2.0

..0.4.0.0.3.0.0..0.1.1.0.3.2.0..0.3.2.0.1.1.0..0.2.3.0.1.1.0..0.0.0.0.0.3.0

CROSSREFS

Sequence in context: A306377 A230890 A203473 * A221161 A137730 A157920

Adjacent sequences:  A197948 A197949 A197950 * A197952 A197953 A197954

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 19 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 October 26 14:28 EDT 2021. Contains 348267 sequences. (Running on oeis4.)