A197947 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,5,1,1,0,1,1 for x=0,1,2,3,4,5,6

1, 1, 4, 66, 341, 6460, 235116, 18535307, 1636763958, 270018271251, 89711956850770

Offset

1,3

Comments

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

Links

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

Example

All solutions with all values from 0 to 6 for 8X8X8
.........0................0................0................0
........0.2..............1.1..............4.0..............1.1
.......2.1.1............2.5.1............0.0.1............2.5.1
......0.1.5.2..........3.1.1.0..........0.1.5.1..........3.1.1.0
.....0.0.1.1.0........1.1.6.1.1........0.0.1.1.3........1.1.6.1.1
....0.1.1.6.1.1......1.5.1.1.5.0......2.1.1.6.1.2......1.5.1.1.5.1
...4.0.5.1.1.5.1....2.1.0.0.1.1.0....0.1.5.1.1.5.1....0.1.0.0.1.2.0
..0.0.1.1.3.2.1.0..0.0.0.4.0.0.0.0..0.0.1.2.0.1.1.2..0.0.0.4.0.0.0.0

Crossrefs

Sequence in context: A266520 A241705 A015475 * A220798 A220784 A025585

Adjacent sequences: A197944 A197945 A197946 * A197948 A197949 A197950

Keyword

nonn

Author

R. H. Hardin Oct 19 2011

Status

approved