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A197791 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,0,1,0,0,0 for x=0,1,2,3,4,5,6 0
1, 7, 24, 208, 2623, 56379, 2049939, 129937199, 14288858831, 2747104046529 (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 0's, every 2 is next to 2 0'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..10.

EXAMPLE

Some solutions with all values from 0 to 6 for 8X8X8

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

........0.0..............0.0..............0.0..............0.0

.......0.6.0............0.6.0............0.6.0............0.5.0

......0.0.0.0..........2.0.0.0..........4.0.0.0..........0.0.4.2

.....1.4.0.0.0........1.4.0.4.1........0.0.0.6.0........0.6.0.0.1

....3.2.0.0.0.0......2.0.0.0.1.3......0.4.0.0.0.0......0.0.0.4.1.1

...1.1.0.5.0.0.4....2.0.0.5.2.1.2....0.2.1.4.0.5.0....4.0.5.0.1.1.0

..0.1.1.2.0.4.0.0..1.0.4.0.0.2.0.0..1.1.3.1.0.0.2.1..0.0.0.2.1.3.2.0

CROSSREFS

Sequence in context: A209483 A209342 A203117 * A009652 A012777 A074783

Adjacent sequences:  A197788 A197789 A197790 * A197792 A197793 A197794

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 18 2011

STATUS

approved

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Last modified June 22 21:29 EDT 2021. Contains 345393 sequences. (Running on oeis4.)