A197718 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,4,2,0,1,0,0 for x=0,1,2,3,4,5,6

1, 2, 11, 80, 1162, 32623, 1615507, 144988922, 23856782383

Offset

1,2

Comments

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

Links

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

Example

All solutions with all values from 0 to 6 for 6X6X6
.......2............0............2............0............1............1
......2.2..........0.0..........2.2..........0.0..........4.1..........1.4
.....0.0.3........0.6.0........3.0.0........0.6.0........1.1.0........0.1.1
....0.5.0.0......1.0.0.3......0.0.5.0......3.0.0.1......0.0.5.0......0.5.0.0
...1.1.0.6.0....4.1.5.0.2....0.6.0.1.1....2.0.5.1.4....0.6.0.0.2....2.0.0.6.0
..1.4.1.0.0.0..1.1.0.0.2.2..0.0.0.1.4.1..2.2.0.0.1.1..0.0.0.3.2.2..2.2.3.0.0.0

Crossrefs

Sequence in context: A181068 A056846 A277500 * A359222 A309417 A215654

Adjacent sequences: A197715 A197716 A197717 * A197719 A197720 A197721

Keyword

nonn

Author

R. H. Hardin Oct 17 2011

Status

approved