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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
1, 2, 17, 113, 2211, 79220, 4456377, 560699301, 127364497803, 52948639902295 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

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..............1..............1

.......0.0............2.2............0.0............3.1............1.3

......0.6.0..........2.5.2..........0.6.0..........1.2.2..........2.2.1

.....0.0.0.0........2.4.2.0........0.0.0.0........0.2.5.2........2.5.2.0

....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

...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

..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

CROSSREFS

Sequence in context: A115354 A100274 A213785 * A203247 A203123 A198043

Adjacent sequences:  A198155 A198156 A198157 * A198159 A198160 A198161

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2011

STATUS

approved

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Last modified October 17 10:38 EDT 2017. Contains 293469 sequences.