A197919 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,5,0,0,3,1,0 for x=0,1,2,3,4,5,6

1, 4, 12, 94, 1604, 47877, 2261778, 187733882, 30981880951, 9213362077719

Offset

1,2

Comments

Every 0 is next to 0 4's, every 1 is next to 1 5's, every 2 is next to 2 0's, every 3 is next to 3 0's, every 4 is next to 4 3'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..10.

Example

Some solutions with all values from 0 to 6 for 8X8X8
.........2................0................0................0
........0.0..............3.3..............0.0..............3.2
.......0.0.0............0.0.0............0.6.0............0.0.1
......0.3.3.0..........0.3.3.0..........0.0.0.0..........3.1.5.1
.....1.1.4.3.0........0.3.4.3.0........0.0.3.3.0........0.0.1.1.0
....1.5.1.3.0.0......0.0.1.1.0.3......0.1.1.4.3.0......0.0.3.4.3.0
...2.2.1.0.0.6.0....0.6.0.5.1.0.3....2.1.5.1.3.0.3....0.6.0.3.3.0.0
..0.0.0.3.0.0.0.0..2.0.0.1.1.2.0.0..0.2.0.1.0.0.3.0..2.0.0.0.0.0.0.0

Crossrefs

Sequence in context: A096424 A009629 A203110 * A358003 A009651 A074930

Adjacent sequences: A197916 A197917 A197918 * A197920 A197921 A197922

Keyword

nonn

Author

R. H. Hardin Oct 19 2011

Status

approved