A203218 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,3,0,1,1,0,1 for x=0,1,2,3,4,5,6

1, 4, 21, 260, 5909, 333201, 34163046, 6659963484, 3023008318216

Offset

1,2

Comments

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

Links

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

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............0..............2..............2..............0
.......1.1............1.0............0.0............0.0............3.1
......3.4.3..........3.0.2..........0.5.0..........2.1.3..........1.1.4
.....1.1.1.1........1.1.2.2........0.0.3.1........0.2.1.1........1.6.1.1
....1.6.1.0.0......1.6.1.0.0......0.0.1.1.4......0.0.1.6.1......3.1.1.3.0
...3.1.1.3.5.0....3.1.1.3.5.0....0.1.1.6.1.1....0.5.3.1.1.3....1.2.0.0.5.0
..0.1.0.1.0.0.2..0.1.4.1.0.0.0..0.2.3.1.1.3.0..0.0.0.1.4.1.0..0.2.0.0.0.0.2

Crossrefs

Sequence in context: A357857 A032074 A197662 * A198004 A184960 A184963

Adjacent sequences: A203215 A203216 A203217 * A203219 A203220 A203221

Keyword

nonn

Author

R. H. Hardin Dec 30 2011

Status

approved