A197966 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,5,1,0,1,1,0 for x=0,1,2,3,4,5,6

1, 1, 4, 37, 342, 6518, 165964, 12238122, 1356791247, 251367828199

Offset

1,3

Comments

Every 0 is next to 0 5's, every 1 is next to 1 5's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 1'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 7X7X7
........0..............0..............0..............2..............0
.......2.0............0.0............0.0............1.1............0.3
......1.1.0..........0.6.0..........0.6.0..........1.5.1..........1.1.0
.....1.5.1.3........2.0.0.3........0.0.0.0........1.4.1.2........1.5.1.0
....1.4.1.0.0......1.1.1.1.0......2.1.0.3.1......1.5.1.0.0......1.4.1.0.0
...1.5.1.0.6.0....1.5.4.5.1.0....1.5.1.1.5.1....0.1.1.0.6.0....1.5.1.0.6.0
..0.1.1.0.0.0.0..2.1.1.1.1.2.0..0.1.1.4.1.1.2..0.0.0.3.0.0.0..2.1.1.2.0.0.0

Crossrefs

Sequence in context: A162649 A221059 A356284 * A199690 A133462 A123762

Adjacent sequences: A197963 A197964 A197965 * A197967 A197968 A197969

Keyword

nonn

Author

R. H. Hardin Oct 19 2011

Status

approved