A197856 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,0,0,0,0,1,1 for x=0,1,2,3,4,5,6

1, 7, 45, 630, 16425, 795212, 73597267, 12852258424, 4231009372419, 2633791007183728, 3098137435019686237

Offset

1,2

Comments

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

Links

Table of n, a(n) for n=1..11.

Example

Some solutions with all values from 0 to 6 for 8X8X8
.........0................0................0................0
........1.1..............0.3..............0.4..............0.0
.......1.6.1............0.0.1............3.0.0............0.0.0
......0.1.1.0..........0.3.1.1..........2.0.4.0..........4.0.3.2
.....0.2.5.1.1........0.4.1.5.0........0.2.1.2.2........0.0.2.1.0
....0.3.1.1.1.1......0.0.0.1.1.1......1.1.5.1.0.2......2.2.1.5.1.1
...0.0.4.0.2.0.2....0.0.4.2.1.6.1....1.6.1.1.2.3.0....0.2.1.1.1.6.1
..0.0.0.0.2.2.0.1..0.0.0.2.0.1.1.0..0.1.1.0.2.0.2.1..1.2.0.2.0.1.1.0

Crossrefs

Sequence in context: A337553 A006680 A197796 * A205080 A232789 A203201

Adjacent sequences: A197853 A197854 A197855 * A197857 A197858 A197859

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved