A202764 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,2,1,1,1,2 for x=0,1,2,3,4,5,6

1, 5, 14, 69, 581, 8288, 183749, 5852151, 304335082, 26755090180

Offset

1,2

Comments

Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 1's, every 5 is next to 5 1's, every 6 is next to 6 2's

Links

Table of n, a(n) for n=1..10.

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............2..............2..............0..............1
.......2.2............2.2............2.2............2.2............1.0
......2.6.2..........0.1.1..........1.1.0..........2.6.2..........1.4.0
.....0.2.2.0........1.5.1.0........0.1.5.1........0.2.2.1........0.1.1.1
....1.1.3.1.1......3.1.1.2.2......2.2.1.1.3......1.1.1.0.1......2.2.3.5.1
...1.1.5.1.4.1....1.4.0.2.6.2....2.6.2.0.4.1....2.1.5.1.4.1....2.6.2.1.1.0
..1.0.1.1.0.0.1..0.1.1.1.2.2.0..0.2.2.1.1.1.0..2.2.0.1.3.1.0..0.2.2.0.1.1.1

Crossrefs

Sequence in context: A128102 A304060 A197901 * A197876 A370761 A305017

Adjacent sequences: A202761 A202762 A202763 * A202765 A202766 A202767

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved