A197864 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,2,2,0,3,2,0 for x=0,1,2,3,4,5,6

1, 2, 17, 164, 2549, 90950, 6988978, 961704504, 218699376532, 98658175034997

Offset

1,2

Comments

Every 0 is next to 0 5's, every 1 is next to 1 2's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 3's, every 5 is next to 5 2'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 8X8X8
.........0................2................0................0
........0.3..............2.2..............3.0..............2.2
.......0.3.0............1.0.0............0.3.0............2.5.2
......0.3.4.3..........0.0.6.0..........0.3.4.3..........0.2.5.2
.....0.0.3.0.0........2.2.0.0.3........0.0.3.0.0........0.0.2.2.0
....2.2.2.0.6.0......2.5.2.3.4.0......0.6.0.2.2.2......0.3.3.0.0.1
...2.5.5.2.0.0.2....2.5.2.0.3.3.0....2.0.0.2.5.5.2....3.3.4.0.6.0.2
..0.2.2.2.0.1.2.2..0.2.2.0.0.0.3.0..2.2.1.0.2.2.2.0..0.0.0.3.0.0.2.2

Crossrefs

Sequence in context: A362477 A276198 A178806 * A231616 A003419 A126109

Adjacent sequences: A197861 A197862 A197863 * A197865 A197866 A197867

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved