A197628 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,0,2,0,1,1,0 for x=0,1,2,3,4,5,6

1, 5, 23, 184, 2717, 71378, 3069415, 228810799, 30168287384

Offset

1,2

Comments

Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1'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 0 to 6 for 8X8X8
.........0................0................1................0
........2.0..............0.0..............0.1..............0.0
.......2.2.1............0.6.0............1.1.2............0.6.0
......0.1.4.1..........3.0.0.3..........1.5.2.2..........3.0.0.3
.....1.5.1.3.0........1.0.2.2.0........0.1.1.3.0........2.0.3.3.0
....1.1.1.0.0.0......1.5.1.2.1.2......2.1.1.0.0.0......2.2.1.1.0.2
...3.0.2.2.0.6.0....0.1.1.1.4.2.2....2.2.4.3.0.6.0....1.4.1.5.1.2.2
..0.0.0.2.0.0.0.0..1.1.1.0.1.1.0.0..1.0.1.1.0.0.0.0..0.1.1.0.1.1.0.1

Crossrefs

Sequence in context: A197792 A197793 A203115 * A296840 A203204 A203119

Adjacent sequences: A197625 A197626 A197627 * A197629 A197630 A197631

Keyword

nonn

Author

R. H. Hardin Oct 16 2011

Status

approved