A202762 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,1,0,1,1,0,0 for x=0,1,2,3,4,5,6

1, 7, 33, 523, 13363, 670781, 69889978, 13289675784, 5140392609039

Offset

1,2

Comments

Every 0 is next to 0 4's, every 1 is next to 1 1's, every 2 is next to 2 0's, every 3 is next to 3 1'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..9.

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............2..............0..............0..............2
.......0.0............0.0............0.0............0.0............0.0
......0.5.0..........0.5.0..........0.6.0..........0.6.0..........0.5.0
.....1.2.0.0........1.2.0.0........0.0.0.0........0.0.0.0........0.0.2.1
....1.4.1.0.0......1.4.1.0.0......0.0.1.1.0......0.0.1.1.0......0.0.1.4.1
...3.3.1.0.6.0....3.3.1.0.6.0....0.5.2.4.3.1....0.5.2.4.3.1....0.6.0.1.3.3
..1.1.0.0.0.0.0..1.1.0.0.0.0.2..0.0.0.1.1.0.1..2.0.0.1.1.0.1..2.0.0.0.0.1.1

Crossrefs

Sequence in context: A197995 A207150 A197565 * A202757 A266018 A001795

Adjacent sequences: A202759 A202760 A202761 * A202763 A202764 A202765

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved