

A197994


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


0




OFFSET

1,2


COMMENTS

Every 0 is next to 0 6's, every 1 is next to 1 4'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..............0
.......0.0............0.3............0.0............2.2............0.1
......2.2.0..........2.2.0..........0.1.1..........2.6.2..........1.4.1
.....2.6.2.1........2.6.2.0........2.2.4.1........0.2.2.0........0.0.1.0
....0.2.2.4.1......0.2.2.0.0......2.6.2.1.0......1.0.0.0.0......0.0.3.2.2
...0.5.0.1.1.0....0.5.0.3.1.1....0.2.2.0.5.0....4.1.0.0.5.0....3.5.0.2.6.2
..0.0.0.0.0.3.0..0.0.0.0.1.4.1..0.3.0.0.0.0.0..1.1.0.0.3.0.0..0.0.0.0.2.2.0


CROSSREFS

Sequence in context: A098621 A266834 A131407 * A186273 A261886 A245895
Adjacent sequences: A197991 A197992 A197993 * A197995 A197996 A197997


KEYWORD

nonn


AUTHOR

R. H. Hardin Oct 20 2011


STATUS

approved



