A203223 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,0,2,0,1,0,2 for x=0,1,2,3,4,5,6

1, 5, 23, 193, 3173, 97448, 5029351, 468740231, 79291081208

Offset

1,2

Comments

Every 0 is next to 0 6's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1's, every 5 is next to 5 0's, every 6 is next to 6 2'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..............1
.......1.1............0.0............2.2............0.0............0.3
......1.4.1..........0.0.0..........2.6.2..........0.5.0..........0.0.0
.....0.3.0.1........0.5.0.0........1.2.2.0........0.3.0.3........0.5.0.3
....0.5.0.2.2......1.3.0.2.2......1.0.0.5.0......1.1.2.2.0......2.2.0.0.1
...2.0.0.2.6.2....1.4.0.2.6.2....1.4.0.0.0.0....1.4.2.6.2.3....2.6.2.0.4.1
..2.2.3.0.2.2.0..0.1.1.1.2.2.0..0.1.1.3.0.0.0..1.0.1.2.2.0.0..0.2.2.1.1.1.0

Crossrefs

Sequence in context: A198041 A197922 A226154 * A173041 A156187 A322238

Adjacent sequences: A203220 A203221 A203222 * A203224 A203225 A203226

Keyword

nonn

Author

R. H. Hardin Dec 30 2011

Status

approved