A197752 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,1,1,0,1,0 for x=0,1,2,3,4,5,6

1, 4, 13, 82, 973, 13261, 309663, 11566445, 631393531

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

Links

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

Example

Some solutions with all values from 0 to 6 for 8X8X8
.........0................1................1................0
........0.4..............1.0..............1.0..............1.1
.......4.0.0............2.4.0............1.2.0............2.5.1
......0.0.6.0..........1.0.0.0..........1.0.0.4..........0.1.1.0
.....0.4.0.0.0........3.1.2.0.0........3.1.2.0.0........0.4.2.2.1
....2.1.2.0.4.0......1.5.1.0.6.0......1.5.1.0.6.0......0.0.0.0.2.3
...1.5.1.2.2.1.2....0.1.1.2.0.0.0....0.1.1.2.0.0.0....4.0.0.6.0.1.1
..0.1.1.0.1.3.1.0..1.1.1.0.0.4.0.0..1.2.2.0.0.4.0.0..0.0.0.0.0.2.1.0

Crossrefs

Sequence in context: A354152 A354409 A123333 * A241905 A012258 A012134

Adjacent sequences: A197749 A197750 A197751 * A197753 A197754 A197755

Keyword

nonn

Author

R. H. Hardin Oct 17 2011

Status

approved