A202759 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 4,1,2,0,2,2,0 for x=0,1,2,3,4,5,6

1, 5, 29, 417, 12113, 736472, 91564999, 23215404807, 12055249622625

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

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............0..............0..............0..............0
.......1.1............2.2............2.2............0.0............1.1
......0.2.2..........2.5.2..........2.5.2..........0.6.0..........2.2.0
.....3.2.5.2........0.2.4.2........0.2.4.2........0.0.0.3........2.5.2.3
....0.0.2.4.2......0.0.2.5.2......0.0.2.5.2......2.2.2.2.0......2.4.2.0.0
...0.6.0.2.5.2....0.6.0.2.2.1....0.6.0.2.2.1....2.5.4.5.2.0....2.5.2.0.6.0
..0.0.0.0.2.2.0..0.0.0.3.0.0.1..0.0.0.3.0.1.0..0.2.2.2.2.1.1..0.2.2.0.0.0.0

Crossrefs

Sequence in context: A289483 A216027 A087899 * A103783 A103515 A198054

Adjacent sequences: A202756 A202757 A202758 * A202760 A202761 A202762

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved