A197915 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 5,0,3,1,1,1,1 for x=0,1,2,3,4,5,6

1, 4, 1, 5, 147, 1155, 35780, 2163993, 117407676

Offset

1,2

Comments

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

Links

Table of n, a(n) for n=1..9.

Example

Some solutions with all values from 0 to 6 for 7X7X7
........1..............0..............1..............0..............1
.......1.0............1.1............0.1............1.1............1.0
......1.4.0..........1.6.1..........0.4.1..........1.6.1..........1.3.2
.....0.1.1.1........0.1.1.0........1.1.1.0........0.1.1.0........0.1.3.1
....1.1.5.3.2......1.1.5.1.1......2.3.5.1.1......1.1.5.1.1......1.1.5.1.0
...1.6.1.1.3.0....1.3.3.1.4.1....0.3.1.1.6.1....1.4.1.3.3.1....1.6.1.1.4.0
..0.1.1.0.1.1.1..1.0.2.1.0.0.1..1.1.1.0.1.1.0..1.0.0.1.2.0.1..0.1.1.0.1.1.1

Crossrefs

Sequence in context: A194576 A229896 A203207 * A205074 A210491 A127140

Adjacent sequences: A197912 A197913 A197914 * A197916 A197917 A197918

Keyword

nonn

Author

R. H. Hardin Oct 19 2011

Status

approved