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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 18 2011
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)