A197783 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,4,1,0,1,0,0 for x=0,1,2,3,4,5,6

1, 1, 10, 67, 854, 17622, 946069, 78840479, 11293856230, 2985961804881

Offset

1,3

Comments

Every 0 is next to 0 4's, every 1 is next to 1 4's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 1's, every 5 is next to 5 0's, every 6 is next to 6 0's

Links

Table of n, a(n) for n=1..10.

Example

Some solutions with all values from 0 to 6 for 6X6X6
.......0............0............1............1............0............0
......3.0..........0.0..........4.1..........1.4..........0.0..........0.0
.....0.5.0........0.6.0........1.1.2........2.1.1........0.6.0........0.5.3
....0.0.0.2......3.0.0.2......0.0.0.0......0.0.0.0......3.0.0.1......2.0.0.0
...0.6.0.1.1....0.5.0.1.1....0.6.0.5.0....3.5.0.6.0....0.5.0.1.4....1.1.0.6.0
..0.0.0.1.4.1..0.0.0.1.4.1..0.0.0.3.0.0..0.0.0.0.0.0..0.0.0.2.1.1..1.4.1.0.0.0

Crossrefs

Sequence in context: A026886 A079156 A324366 * A197751 A144052 A280438

Adjacent sequences: A197780 A197781 A197782 * A197784 A197785 A197786

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved