A205074 Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,0,4,1,1,1,1 for x=0,1,2,3,4,5,6

1, 4, 1, 5, 150, 519, 18789, 823727, 20037927, 4513604604

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 4'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..............0..............0..............0..............0
.......1.1............1.1............1.1............1.1............1.1
......1.4.1..........1.6.1..........1.4.1..........3.5.1..........1.6.1
.....1.0.2.0........0.1.1.0........0.2.0.1........1.1.1.0........0.1.1.0
....3.1.4.1.1......1.1.4.2.1......1.1.4.1.3......1.0.4.1.1......1.2.4.1.1
...1.5.1.1.6.1....1.5.1.0.4.1....1.6.1.1.5.1....1.4.2.1.6.1....1.4.0.1.5.1
..0.1.1.0.1.1.0..0.1.3.1.1.1.0..0.1.1.0.1.1.0..0.1.1.0.1.1.0..0.1.1.3.1.0.1

Crossrefs

Sequence in context: A229896 A203207 A197915 * A210491 A127140 A010642

Adjacent sequences: A205071 A205072 A205073 * A205075 A205076 A205077

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved