A197798 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 0,0,2,1,2,1,1 for x=0,1,2,3,4,5,6

1, 4, 4, 41, 434, 2975, 123177, 4063153, 194524778

Offset

1,2

Comments

Every 0 is next to 0 0'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 2's, every 5 is next to 5 1'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 8X8X8
.........1................0................1................0
........0.1..............1.1..............0.3..............1.1
.......2.2.2............1.6.1............1.1.1............1.6.1
......2.1.4.2..........0.1.1.0..........1.5.1.0..........0.1.1.0
.....0.2.0.2.0........1.1.2.2.2........0.1.2.2.2........2.2.2.1.1
....1.1.2.2.1.3......1.5.2.1.1.2......1.1.2.4.1.2......2.4.4.2.5.1
...1.6.1.1.5.1.1....0.1.1.2.0.4.2....1.6.1.2.0.2.0....0.2.0.2.1.1.0
..0.1.1.0.1.1.0.1..1.3.1.0.2.2.2.0..0.1.1.0.2.2.1.1..1.1.2.2.0.3.1.1

Crossrefs

Sequence in context: A125066 A271945 A016498 * A082794 A269913 A197933

Adjacent sequences: A197795 A197796 A197797 * A197799 A197800 A197801

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved