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A197662 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,3,0,1,2,0,2 for x=0,1,2,3,4,5,6 0
1, 4, 21, 260, 5402, 277217, 26746470, 4529806572, 1752572020493 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions with all values 0 to 6 for 8X8X8

.........2................0................0................2

........0.0..............2.2..............2.2..............0.0

.......2.5.0............0.4.0............0.4.0............2.5.0

......2.0.0.2..........0.2.2.0..........0.2.2.0..........2.0.0.1

.....0.2.2.4.2........1.2.6.2.2........2.2.6.2.2........0.2.2.1.3

....2.2.6.2.0.0......3.0.2.2.0.2......2.0.2.2.0.1......0.2.6.2.0.1

...2.0.2.2.0.1.0....1.1.0.1.0.5.0....0.5.0.2.0.1.3....2.4.2.2.0.1.0

..0.2.2.0.1.3.1.0..0.0.1.3.1.0.0.0..2.0.0.2.2.0.0.1..0.2.0.0.1.3.1.0

CROSSREFS

Sequence in context: A217144 A132684 A032074 * A203218 A198004 A184960

Adjacent sequences:  A197659 A197660 A197661 * A197663 A197664 A197665

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 17 2011

STATUS

approved

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Last modified May 26 01:06 EDT 2013. Contains 225650 sequences.