A207159 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,0,3,0,1,1,1 for x=0,1,2,3,4,5,6

1, 4, 10, 72, 793, 16137, 551329, 32665248, 3413776221

Offset

1,2

Comments

Every 0 is next to 0 6's, every 1 is next to 1 0's, every 2 is next to 2 3's, every 3 is next to 3 0'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..............0..............0..............0
.......0.1............1.1............3.0............1.1............0.3
......1.5.1..........1.6.1..........2.0.3..........1.6.1..........3.0.2
.....1.1.1.0........0.1.1.0........0.3.0.1........0.1.1.0........1.0.3.0
....3.0.4.1.1......2.3.4.1.1......1.1.4.1.1......1.1.4.3.2......1.1.4.1.1
...0.0.3.1.6.1....3.0.0.1.5.1....1.6.1.1.5.0....1.5.1.0.0.3....0.5.1.1.6.1
..0.3.2.0.1.1.0..0.0.3.1.1.0.1..0.1.1.0.1.1.1..1.0.1.1.3.0.0..1.1.1.0.1.1.0

Crossrefs

Sequence in context: A197939 A207160 A244297 * A152397 A239502 A171754

Adjacent sequences: A207156 A207157 A207158 * A207160 A207161 A207162

Keyword

nonn

Author

R. H. Hardin Feb 15 2012

Status

approved