A207160 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,0,1,1,1,1,1 for x=0,1,2,3,4,5,6

1, 4, 10, 68, 1113, 11504, 340577, 16856047, 945354990, 108328871198

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 1'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..10.

Example

Some solutions with all values from 0 to 6 for 7X7X7
........0..............1..............0..............0..............1
.......1.1............0.1............1.1............2.1............1.0
......2.1.1..........0.4.1..........2.4.1..........0.1.1..........1.4.1
.....0.2.0.1........1.1.1.0........1.3.1.0........1.1.1.0........0.1.3.2
....1.1.4.1.3......2.3.5.1.1......0.1.5.1.1......3.4.5.1.1......1.1.5.1.0
...1.6.1.1.5.1....1.3.1.1.6.1....2.1.1.1.6.1....1.1.1.1.6.1....1.6.1.1.1.2
..0.1.1.0.1.1.0..0.1.2.0.1.1.0..0.1.1.0.1.1.0..1.0.2.0.1.1.0..0.1.1.0.1.1.0

Crossrefs

Sequence in context: A189893 A355375 A197939 * A244297 A207159 A152397

Adjacent sequences: A207157 A207158 A207159 * A207161 A207162 A207163

Keyword

nonn

Author

R. H. Hardin Feb 15 2012

Status

approved